| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 38 | 111 | 203 | 284 | 382 | 548 | 640 | 700 | 686 | 630 |
| A | 15 | 50 | 78 | 102 | 146 | 207 | 251 | 259 | 256 | 223 |
| AB | - | 7 | 6 | 9 | 10 | 14 | 20 | 22 | 27 | 25 |
| B | 8 | 12 | 25 | 34 | 42 | 65 | 59 | 67 | 67 | 62 |
| O | 15 | 42 | 94 | 139 | 184 | 262 | 310 | 352 | 336 | 320 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 39.5% | 45.0% | 38.4% | 35.9% | 38.2% | 37.8% | 39.2% | 37.0% | 37.3% | 35.4% |
| AB | - | 6.3% | 3.0% | 3.2% | 2.6% | 2.6% | 3.1% | 3.1% | 3.9% | 4.0% |
| B | 21.1% | 10.8% | 12.3% | 12.0% | 11.0% | 11.9% | 9.2% | 9.6% | 9.8% | 9.8% |
| O | 39.5% | 37.8% | 46.3% | 48.9% | 48.2% | 47.8% | 48.4% | 50.3% | 49.0% | 50.8% |