| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 71 | 102 | 132 | 140 | 127 | 139 | 148 | 182 | 168 | 146 |
| A | 25 | 29 | 41 | 48 | 40 | 49 | 55 | 67 | 59 | 45 |
| AB | 1 | 5 | 4 | 6 | 4 | 5 | 9 | 7 | 9 | 8 |
| B | 9 | 17 | 26 | 17 | 16 | 21 | 22 | 25 | 30 | 20 |
| O | 36 | 51 | 61 | 69 | 67 | 64 | 62 | 83 | 70 | 73 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 35.2% | 28.4% | 31.1% | 34.3% | 31.5% | 35.3% | 37.2% | 36.8% | 35.1% | 30.8% |
| AB | 1.4% | 4.9% | 3.0% | 4.3% | 3.1% | 3.6% | 6.1% | 3.8% | 5.4% | 5.5% |
| B | 12.7% | 16.7% | 19.7% | 12.1% | 12.6% | 15.1% | 14.9% | 13.7% | 17.9% | 13.7% |
| O | 50.7% | 50.0% | 46.2% | 49.3% | 52.8% | 46.0% | 41.9% | 45.6% | 41.7% | 50.0% |