| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2004 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 259 |
| 2005 | 218 | 220 | 226 | 199 | 99 | 172 | 304 | 63 | 263 | 306 | 265 | 93 |
| 2006 | 80 | 163 | 346 | 162 | 62 | 114 | 96 | 163 | 215 | 130 | 141 | 96 |
| 2007 | 154 | 93 | 100 | 65 | 192 | 115 | 39 | 43 | 282 | 232 | 142 | 235 |
| 2008 | 168 | 121 | 176 | 207 | 375 | 308 | 300 | 338 | 374 | 270 | 542 | 348 |
| 2009 | 346 | 373 | 468 | 290 | 362 | 323 | 250 | 391 | 299 | 320 | 305 | 454 |
| 2010 | 853 | 464 | 544 | 534 | 310 | 608 | 522 | 566 | 579 | 526 | 551 | 523 |
| 2011 | 334 | 411 | 418 | 541 | 987 | 607 | 675 | 471 | 496 | 451 | 530 | 839 |
| 2012 | 935 | 518 | 655 | 666 | 1046 | 550 | 475 | 469 | 615 | 572 | 528 | 563 |
| 2013 | 760 | 441 | 710 | 627 | 540 | 481 | 617 | 145 | 0 | 0 | 0 | 0 |