Usage Statistics for lefthandlogic.com

Summary Period: September 2009
Generated 01-Oct-2009 00:01 EDT

[Daily Statistics] [Hourly Statistics] [URLs] [Entry] [Exit] [Sites] [Referrers] [Search] [Agents] [Countries]

Monthly Statistics for September 2009
Total Hits 224939
Total Files 183373
Total Pages 179895
Total Visits 25794
Total KBytes 1838100
Total Unique Sites 10372
Total Unique URLs 438
Total Unique Referrers 951
Total Unique User Agents 835
. Avg Max
Hits per Hour 312 1246
Hits per Day 7497 12641
Files per Day 6112 10811
Pages per Day 5996 10493
Visits per Day 859 1328
KBytes per Day 61270 113435
Hits by Response Code
Undefined response code 21
Code 200 - OK 183373
Code 206 - Partial Content 4596
Code 302 - Found 122
Code 304 - Not Modified 3891
Code 400 - Bad Request 1
Code 404 - Not Found 31162
Code 416 - Requested Range Not Satisfiable 14
Code 500 - Internal Server Error 1445
Code 501 - Not Implemented 8
Code 502 - Bad Gateway 306

Daily usage for September 2009

Daily Statistics for September 2009
Day Hits Files Pages Visits Sites KBytes
1 8460 3.76% 7125 3.89% 6504 3.62% 879 3.41% 697 6.72% 71816 3.91%
2 8279 3.68% 6762 3.69% 6636 3.69% 871 3.38% 701 6.76% 64128 3.49%
3 7715 3.43% 6363 3.47% 6275 3.49% 923 3.58% 748 7.21% 59138 3.22%
4 5669 2.52% 4718 2.57% 4683 2.60% 680 2.64% 543 5.24% 42427 2.31%
5 1791 0.80% 1211 0.66% 1224 0.68% 276 1.07% 234 2.26% 17981 0.98%
6 3295 1.46% 2385 1.30% 2866 1.59% 382 1.48% 244 2.35% 38499 2.09%
7 3704 1.65% 2776 1.51% 2861 1.59% 443 1.72% 356 3.43% 45141 2.46%
8 8195 3.64% 6772 3.69% 6494 3.61% 1016 3.94% 789 7.61% 63120 3.43%
9 9368 4.16% 7648 4.17% 7401 4.11% 1024 3.97% 824 7.94% 73519 4.00%
10 8612 3.83% 6834 3.73% 6734 3.74% 1011 3.92% 797 7.68% 64316 3.50%
11 7869 3.50% 6481 3.53% 6372 3.54% 917 3.56% 693 6.68% 62597 3.41%
12 2364 1.05% 1859 1.01% 1752 0.97% 316 1.23% 255 2.46% 13590 0.74%
13 4167 1.85% 3206 1.75% 3285 1.83% 437 1.69% 378 3.64% 27929 1.52%
14 9599 4.27% 8050 4.39% 7956 4.42% 1127 4.37% 844 8.14% 69961 3.81%
15 11080 4.93% 9406 5.13% 9077 5.05% 1155 4.48% 891 8.59% 86391 4.70%
16 9672 4.30% 7995 4.36% 7683 4.27% 1119 4.34% 900 8.68% 74077 4.03%
17 10291 4.58% 8650 4.72% 8398 4.67% 1194 4.63% 918 8.85% 87376 4.75%
18 8467 3.76% 7060 3.85% 7150 3.97% 949 3.68% 768 7.40% 88459 4.81%
19 1979 0.88% 1387 0.76% 1450 0.81% 316 1.23% 303 2.92% 14829 0.81%
20 4101 1.82% 3259 1.78% 3169 1.76% 506 1.96% 447 4.31% 33014 1.80%
21 9886 4.39% 8043 4.39% 7776 4.32% 1165 4.52% 917 8.84% 83611 4.55%
22 9245 4.11% 7122 3.88% 7218 4.01% 1201 4.66% 979 9.44% 70847 3.85%
23 10155 4.51% 8185 4.46% 7977 4.43% 1212 4.70% 981 9.46% 79707 4.34%
24 10321 4.59% 8625 4.70% 8331 4.63% 1141 4.42% 900 8.68% 83520 4.54%
25 8424 3.75% 6822 3.72% 6887 3.83% 985 3.82% 759 7.32% 63714 3.47%
26 3054 1.36% 2317 1.26% 2449 1.36% 372 1.44% 327 3.15% 26196 1.43%
27 3173 1.41% 2349 1.28% 2331 1.30% 432 1.67% 389 3.75% 22588 1.23%
28 11541 5.13% 9452 5.15% 9277 5.16% 1174 4.55% 952 9.18% 93498 5.09%
29 12641 5.62% 10811 5.90% 10493 5.83% 1285 4.98% 1023 9.86% 113435 6.17%
30 11822 5.26% 9700 5.29% 9186 5.11% 1328 5.15% 1071 10.33% 102675 5.59%

Hourly usage for September 2009

Hourly Statistics for September 2009
Hour Hits Files Pages KBytes
Avg Total Avg Total Avg Total Avg Total
0 90 2712 1.21% 65 1968 1.07% 64 1930 1.07% 993 29777 1.62%
1 82 2466 1.10% 56 1702 0.93% 62 1873 1.04% 929 27859 1.52%
2 72 2172 0.97% 58 1753 0.96% 62 1863 1.04% 746 22389 1.22%
3 105 3163 1.41% 83 2493 1.36% 83 2502 1.39% 1026 30778 1.67%
4 60 1806 0.80% 47 1418 0.77% 51 1531 0.85% 618 18533 1.01%
5 65 1969 0.88% 54 1627 0.89% 54 1644 0.91% 581 17433 0.95%
6 65 1961 0.87% 47 1413 0.77% 50 1518 0.84% 673 20183 1.10%
7 180 5414 2.41% 143 4292 2.34% 143 4317 2.40% 1429 42874 2.33%
8 354 10644 4.73% 286 8582 4.68% 280 8412 4.68% 2908 87237 4.75%
9 496 14894 6.62% 408 12242 6.68% 402 12070 6.71% 3869 116068 6.31%
10 629 18898 8.40% 528 15858 8.65% 500 15024 8.35% 5178 155336 8.45%
11 631 18936 8.42% 530 15924 8.68% 504 15132 8.41% 5344 160318 8.72%
12 583 17517 7.79% 483 14507 7.91% 473 14207 7.90% 4811 144344 7.85%
13 623 18703 8.31% 514 15446 8.42% 504 15144 8.42% 5023 150688 8.20%
14 664 19925 8.86% 558 16762 9.14% 535 16076 8.94% 5473 164176 8.93%
15 568 17042 7.58% 476 14292 7.79% 460 13816 7.68% 4534 136021 7.40%
16 448 13465 5.99% 370 11102 6.05% 372 11169 6.21% 3647 109410 5.95%
17 364 10927 4.86% 301 9034 4.93% 298 8940 4.97% 2965 88947 4.84%
18 287 8629 3.84% 233 7000 3.82% 227 6820 3.79% 2218 66540 3.62%
19 254 7643 3.40% 200 6013 3.28% 199 5988 3.33% 1900 56996 3.10%
20 255 7665 3.41% 200 6013 3.28% 201 6045 3.36% 1693 50800 2.76%
21 260 7826 3.48% 203 6095 3.32% 200 6000 3.34% 2109 63261 3.44%
22 194 5846 2.60% 144 4320 2.36% 147 4423 2.46% 1282 38450 2.09%
23 157 4716 2.10% 117 3517 1.92% 115 3451 1.92% 1323 39681 2.16%

Top 30 of 438 Total URLs
# Hits KBytes URL
1 92053 40.92% 921745 50.15% /servlet/mathProbe
2 29348 13.05% 225261 12.26% /servlet/cbaWordlist
3 27816 12.37% 150661 8.20% /servlet/cbaRdngProbeGenerator_8Nov03
4 11784 5.24% 24607 1.34% /
5 4448 1.98% 128510 6.99% /stats/usage_200909.html
6 3222 1.43% 71073 3.87% /servlet/tsa2
7 1477 0.66% 14685 0.80% /stats/
8 884 0.39% 3744 0.20% /htmdocs/tools/tsa/tsaweb/jscripts/utility.js
9 713 0.32% 1123 0.06% /htmdocs/tools/tsa/tsaweb/jscripts/backgrnd.js
10 403 0.18% 2714 0.15% /htmdocs/tools/tsa/tsaweb/jscripts/iqpg.js
11 380 0.17% 2468 0.13% /htmdocs/tools/tsa/tsaweb/jscripts/achpg.js
12 370 0.16% 1229 0.07% /htmdocs/tools/tsa/tsaweb/jscripts/age.js
13 337 0.15% 556 0.03% /htmdocs/tools/tsa/tsaweb/jscripts/ruleouts.js
14 235 0.10% 298 0.02% /htmdocs/tools/tsa/tsaweb/jscripts/testpref.js
15 162 0.07% 254 0.01% /cbaProbe/
16 144 0.06% 17803 0.97% /stats/usage_200908.html
17 143 0.06% 12046 0.66% /stats/usage_200906.html
18 141 0.06% 14627 0.80% /stats/usage_200901.html
19 131 0.06% 10844 0.59% /stats/usage_200902.html
20 126 0.06% 11000 0.60% /stats/usage_200804.html
21 116 0.05% 9136 0.50% /stats/usage_200705.html
22 111 0.05% 8552 0.47% /stats/usage_200702.html
23 108 0.05% 145 0.01% /htmdocs/
24 106 0.05% 143 0.01% /graphics/
25 101 0.04% 159 0.01% /listbin/
26 99 0.04% 182 0.01% /cbaProbe/skins/
27 84 0.04% 461 0.03% /htmdocs/tools/mathprobe/propLists/probnames.txt
28 81 0.04% 732 0.04% /cbaProbe/wordlists/
29 79 0.04% 6958 0.38% /stats/usage_200904.html
30 74 0.03% 118 0.01% /htmdocs/tools/

Top 10 of 438 Total URLs By KBytes
# Hits KBytes URL
1 92053 40.92% 921745 50.15% /servlet/mathProbe
2 29348 13.05% 225261 12.26% /servlet/cbaWordlist
3 27816 12.37% 150661 8.20% /servlet/cbaRdngProbeGenerator_8Nov03
4 4448 1.98% 128510 6.99% /stats/usage_200909.html
5 3222 1.43% 71073 3.87% /servlet/tsa2
6 11784 5.24% 24607 1.34% /
7 144 0.06% 17803 0.97% /stats/usage_200908.html
8 1477 0.66% 14685 0.80% /stats/
9 141 0.06% 14627 0.80% /stats/usage_200901.html
10 143 0.06% 12046 0.66% /stats/usage_200906.html

Top 10 of 104 Total Entry Pages
# Hits Visits URL
1 92053 40.92% 11585 45.07% /servlet/mathProbe
2 29348 13.05% 4864 18.92% /servlet/cbaWordlist
3 27816 12.37% 4608 17.93% /servlet/cbaRdngProbeGenerator_8Nov03
4 11784 5.24% 1923 7.48% /
5 3222 1.43% 730 2.84% /servlet/tsa2
6 4448 1.98% 224 0.87% /stats/usage_200909.html
7 1477 0.66% 191 0.74% /stats/
8 144 0.06% 109 0.42% /stats/usage_200908.html
9 79 0.04% 47 0.18% /stats/usage_200904.html
10 108 0.05% 45 0.18% /htmdocs/

Top 10 of 103 Total Exit Pages
# Hits Visits URL
1 92053 40.92% 11761 45.79% /servlet/mathProbe
2 27816 12.37% 4641 18.07% /servlet/cbaRdngProbeGenerator_8Nov03
3 29348 13.05% 4610 17.95% /servlet/cbaWordlist
4 11784 5.24% 1836 7.15% /
5 3222 1.43% 782 3.04% /servlet/tsa2
6 4448 1.98% 228 0.89% /stats/usage_200909.html
7 1477 0.66% 189 0.74% /stats/
8 144 0.06% 116 0.45% /stats/usage_200908.html
9 79 0.04% 47 0.18% /stats/usage_200904.html
10 106 0.05% 43 0.17% /graphics/

Top 30 of 10372 Total Sites
# Hits Files KBytes Visits Hostname
1 4188 1.86% 4188 2.28% 97818 5.32% 12 0.05% ns360454.ovh.net
2 4152 1.85% 3928 2.14% 23402 1.27% 52 0.20% 66.237.206.98.ptr.us.xo.net
3 2896 1.29% 2896 1.58% 6298 0.34% 12 0.05% ev1s-216-40-204-178.theplanet.com
4 2739 1.22% 2739 1.49% 5727 0.31% 354 1.37% pool-71-177-121-48.lsanca.fios.verizon.net
5 1589 0.71% 1387 0.76% 14764 0.80% 103 0.40% 199.119.29.65
6 1042 0.46% 922 0.50% 9034 0.49% 77 0.30% 164.92.250.21
7 891 0.40% 889 0.48% 3466 0.19% 35 0.14% adsl-70-238-127-168.dsl.elpstx.sbcglobal.net
8 854 0.38% 761 0.42% 3825 0.21% 63 0.24% static.unknown.charter.com
9 771 0.34% 693 0.38% 6477 0.35% 50 0.19% 168.10.192.3
10 705 0.31% 653 0.36% 7176 0.39% 32 0.12% 66.17.216.9
11 668 0.30% 0 0.00% 1395 0.08% 8 0.03% tigo190-102-206-48.emtel.net.co
12 666 0.30% 665 0.36% 6693 0.36% 25 0.10% 68.153.118.87
13 619 0.28% 572 0.31% 4364 0.24% 57 0.22% host91.embarqservices.net
14 607 0.27% 607 0.33% 6062 0.33% 1 0.00% 53-109-113-92.pool.ukrtel.net
15 595 0.26% 537 0.29% 4370 0.24% 31 0.12% 216.159.98.230
16 588 0.26% 588 0.32% 1229 0.07% 372 1.44% server11.servera.info
17 540 0.24% 538 0.29% 9577 0.52% 1 0.00% bzq-114-71-13.static.bezeqint.net
18 514 0.23% 492 0.27% 4680 0.25% 57 0.22% 168.9.82.3
19 504 0.22% 455 0.25% 4925 0.27% 22 0.09% 168.9.27.3
20 504 0.22% 504 0.27% 1275 0.07% 59 0.23% 216.40.204.178
21 502 0.22% 478 0.26% 3566 0.19% 48 0.19% 150.176.227.130
22 498 0.22% 315 0.17% 4352 0.24% 19 0.07% 168.184.220.4
23 498 0.22% 498 0.27% 40908 2.23% 83 0.32% dhcp-077-249-240-240.chello.nl
24 462 0.21% 418 0.23% 3073 0.17% 34 0.13% 74.231.184.98
25 429 0.19% 423 0.23% 2493 0.14% 3 0.01% 67.133.191.194
26 425 0.19% 421 0.23% 4126 0.22% 4 0.02% 205.121.164.209
27 423 0.19% 408 0.22% 2764 0.15% 31 0.12% 68.153.118.208
28 401 0.18% 353 0.19% 3687 0.20% 21 0.08% 66-203-39-100.treca.org
29 398 0.18% 398 0.22% 2849 0.16% 46 0.18% 72.159.148.3
30 397 0.18% 232 0.13% 1621 0.09% 49 0.19% 173-10-20-229-busname-utah.ut.hfc.comcastbusiness.net

Top 10 of 10372 Total Sites By KBytes
# Hits Files KBytes Visits Hostname
1 4188 1.86% 4188 2.28% 97818 5.32% 12 0.05% ns360454.ovh.net
2 498 0.22% 498 0.27% 40908 2.23% 83 0.32% dhcp-077-249-240-240.chello.nl
3 4152 1.85% 3928 2.14% 23402 1.27% 52 0.20% 66.237.206.98.ptr.us.xo.net
4 1589 0.71% 1387 0.76% 14764 0.80% 103 0.40% 199.119.29.65
5 113 0.05% 1 0.00% 11432 0.62% 1 0.00% 69.84.207.147
6 269 0.12% 267 0.15% 10488 0.57% 10 0.04% staff.worthington.k12.oh.us
7 540 0.24% 538 0.29% 9577 0.52% 1 0.00% bzq-114-71-13.static.bezeqint.net
8 1042 0.46% 922 0.50% 9034 0.49% 77 0.30% 164.92.250.21
9 173 0.08% 140 0.08% 8043 0.44% 1 0.00% 38.100.8.50
10 705 0.31% 653 0.36% 7176 0.39% 32 0.12% 66.17.216.9

Top 30 of 951 Total Referrers
# Hits Referrer
1 39450 17.54% - (Direct Request)
2 39250 17.45% http://lefthandlogic.mmaweb.net/servlet/mathProbe
3 21740 9.66% http://www.interventioncentral.org/htmdocs/tools/okapi/okapi.php
4 15877 7.06% http://www.interventioncentral.org/htmdocs/tools/mathprobe/addsing.php
5 15134 6.73% http://www.interventioncentral.org/htmdocs/tools/cbaprobe/cba.php
6 13311 5.92% http://lefthandlogic.mmaweb.net/servlet/cbaWordlist
7 12943 5.75% http://www.interventioncentral.org/htmdocs/tools/mathprobe/allmult.php
8 7115 3.16% http://lefthandlogic.mmaweb.net/servlet/tsa2
9 6849 3.04% http://www.interventioncentral.org/htmdocs/tools/mathprobe/subtsing.php
10 6649 2.96% http://www.interventioncentral.org/htmdocs/tools/mathprobe/multsing.php
11 4891 2.17% http://lefthandlogic.com/servlet/tsa2
12 3624 1.61% http://lefthandlogic.mmaweb.net/servlet/cbaRdngProbeGenerator_8Nov03
13 2147 0.95% http://www.interventioncentral.org/htmdocs/tools/mathprobe/divsing.php
14 1735 0.77% http://www.interventioncentral.com/htmdocs/tools/mathprobe/addsing.php
15 1427 0.63% http://www.interventioncentral.com/htmdocs/tools/okapi/okapi.php
16 1373 0.61% http://www.interventioncentral.com/htmdocs/tools/mathprobe/allmult.php
17 1047 0.47% http://bizuteria-slubna.ltd.pl
18 1047 0.47% http://www.cam-gratis.ltd.pl
19 828 0.37% http://www.interventioncentral.com/htmdocs/tools/mathprobe/multsing.php
20 781 0.35% http://interventioncentral.org/htmdocs/tools/okapi/okapi.php
21 755 0.34% http://interventioncentral.org/htmdocs/tools/mathprobe/addsing.php
22 698 0.31% http://naszyjnik.ltd.pl
23 698 0.31% http://www.handmania.pl
24 666 0.30% http://www.interventioncentral.com/htmdocs/tools/cbaprobe/cba.php
25 607 0.27% http://bestdedicatedserver.blogspot.com/
26 593 0.26% http://www.interventioncentral.com/htmdocs/tools/mathprobe/subtsing.php
27 550 0.24% http://www.work-i.co.cc/levoxyl.html
28 509 0.23% http://www.of-end.co.cc/augmentin.html
29 493 0.22% http://www.to-dc.co.cc/paroxetine.html
30 488 0.22% http://lefthandlogic.com/servlet/mathProbe

Top 20 of 54 Total Search Strings
# Hits Search String
1 10 11.49% left hand logic
2 8 9.20% lefthandlogic.mmaweb.net
3 8 9.20% proxy or proxies or socks5 or http or socks4 \2009\
4 3 3.45% curriculum based assessment wordlist
5 3 3.45% left hand logic math probe
6 3 3.45% lefthandlogic.mmaweb.net/servlet/cbardngprobegenerator_8nov03
7 2 2.30% cover copy compare worksheets
8 2 2.30% left hand logic math probes
9 2 2.30% lefthand logic
10 2 2.30% www.lefthandlogic.mmaweb.net/servlet/cbawordlist
11 1 1.15% 119.246.75.161:808 proxy or proxies or socks5 or http or socks4
12 1 1.15% 189.115.88.186:3128 proxy or proxies or socks5 or http or socks
13 1 1.15% 200.178.231.178:3128 proxy or proxies or socks5 or http or sock
14 1 1.15% 203.177.60.222:8080 proxy or proxies or socks5 or http or socks
15 1 1.15% 217.114.3.220:8080 proxy or proxies or socks5 or http or socks4
16 1 1.15% 218.242.239.61:8080 proxy or proxies or socks5 or http or socks
17 1 1.15% 219.146.172.91:3128 proxy or proxies or socks5 or http or socks
18 1 1.15% 68.105.41.151:8085 proxy or proxies or socks5 or http or socks4
19 1 1.15% 69.147.112.205:80 proxy or proxies or socks5 or http or socks4
20 1 1.15% 91.200.235.231:3128 proxy or proxies or socks5 or http or socks

Top 15 of 835 Total User Agents
# Hits User Agent
1 30108 13.38% Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1
2 26944 11.98% Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.
3 15983 7.11% Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
4 9786 4.35% Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6; .NET
5 9319 4.14% Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9
6 6966 3.10% Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2
7 6073 2.70% Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.
8 4688 2.08% Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; GTB6;
9 4519 2.01% Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.14)
10 4254 1.89% Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.1
11 3807 1.69% Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-us) Appl
12 3716 1.65% Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; InfoP
13 3396 1.51% http://Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9
14 3347 1.49% Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NE
15 2866 1.27% Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)

Usage by Country for September 2009

Top 30 of 58 Total Countries
# Hits Files KBytes Country
1 88624 39.40% 74283 40.51% 719040 39.12% Unresolved/Unknown
2 69397 30.85% 57679 31.45% 567201 30.86% Network
3 29890 13.29% 22115 12.06% 206995 11.26% US Commercial
4 17835 7.93% 14457 7.88% 145387 7.91% United States
5 8800 3.91% 7295 3.98% 70620 3.84% Non-Profit Organization
6 5265 2.34% 4255 2.32% 39911 2.17% US Educational
7 853 0.38% 645 0.35% 6121 0.33% Canada
8 701 0.31% 680 0.37% 51949 2.83% Netherlands
9 671 0.30% 1 0.00% 1443 0.08% Colombia
10 469 0.21% 134 0.07% 5829 0.32% Russian Federation
11 342 0.15% 335 0.18% 1666 0.09% Germany
12 209 0.09% 2 0.00% 558 0.03% Mexico
13 201 0.09% 192 0.10% 4061 0.22% United Kingdom
14 197 0.09% 134 0.07% 822 0.04% Australia
15 196 0.09% 189 0.10% 1000 0.05% New Zealand (Aotearoa)
16 111 0.05% 110 0.06% 969 0.05% Taiwan
17 108 0.05% 103 0.06% 1614 0.09% Ireland
18 104 0.05% 4 0.00% 233 0.01% Poland
19 101 0.04% 1 0.00% 221 0.01% Nicaragua
20 96 0.04% 87 0.05% 1051 0.06% US Government
21 64 0.03% 64 0.03% 134 0.01% Denmark
22 59 0.03% 57 0.03% 295 0.02% Switzerland
23 55 0.02% 47 0.03% 275 0.01% Brazil
24 54 0.02% 54 0.03% 160 0.01% Finland
25 46 0.02% 32 0.02% 966 0.05% Japan
26 43 0.02% 38 0.02% 2638 0.14% Spain
27 41 0.02% 26 0.01% 218 0.01% India
28 40 0.02% 40 0.02% 179 0.01% Slovenia
29 38 0.02% 38 0.02% 532 0.03% US Military
30 35 0.02% 34 0.02% 1527 0.08% Bahamas


Generated by Webalizer Version 2.01