| Month | |||||||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 2000 | 2 | 1 | 1 | 1 | 1 | 3 | 1 | 2 | 12 | ||||
| 2001 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 15 |
| 2002 | 1 | 1 | 1 | 4 | 3 | 5 | 5 | 2 | 8 | 6 | 4 | 6 | 46 |
| 2003 | 1 | 1 | 1 | 1 | 1 | 2 | 15 | 1 | 4 | 1 | 2 | 1 | 31 |
| 2004 | 1 | 1 | 6 | 2 | 2 | 1 | 2 | 3 | 2 | 3 | 4 | 1 | 28 |
| 2005 | 2 | 4 | 1 | 2 | 2 | 2 | 7 | 2 | 6 | 9 | 2 | 1 | 40 |
| 2006 | 4 | 4 | 6 | 14 | 6 | 12 | 13 | 7 | 8 | 13 | 15 | 3 | 105 |
| 2007 | 3 | 9 | 14 | 22 | 16 | 16 | 32 | 10 | 15 | 10 | 4 | 12 | 163 |
| 2008 | 21 | 20 | 38 | 41 | 14 | 50 | 60 | 51 | 31 | 90 | 56 | 62 | 534 |
| 2009 | 98 | 51 | 44 | 23 | 32 | 38 | 59 | 163 | 70 | 52 | 66 | 43 | 739 |
| 2010 | 53 | 38 | 58 | 102 | 94 | 89 | 88 | 124 | 77 | 220 | 76 | 31 | 1050 |
| 2011 | 107 | 48 | 47 | 39 | 39 | 233 | 220 | 7 | 86 | 42 | 2 | 870 | |
| 293 | 178 | 217 | 251 | 212 | 450 | 503 | 372 | 309 | 450 | 235 | 163 | ||