| January | February | March | April | May | June | July | August | September | October | November | December | |||
| 1999 | 6099 | 15346 | 14248 | 15945 | 11320 | 4761 | 3502 | 5199 | 13485 | 19135 | 20328 | 10381 | ||
| 2000 | 10784 | 19454 | 17276 | 14512 | 12126 | 4802 | 2435 | 4586 | 12896 | 21475 | 25526 | 10891 | ||
| 2001 | 12708 | 16238 | 41635 | 32952 | 23052 | 11775 | 3613 | 9057 | 39105 | 32661 | 43060 | 25513 | ||
| 2002 | 45232 | 42905 | 38032 | 39435 | 55671 | 10966 | 6310 | 20237 | 49540 | 82716 | 102543 | 45050 | ||
| 2003 | 75212 | 98467 | ||||||||||||
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