| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 125 | 119 | 124 | 122 | 149 | 236 | 307 | 354 | 340 | 372 |
| A | 56 | 55 | 52 | 51 | 57 | 90 | 123 | 141 | 132 | 146 |
| AB | 2 | 2 | 1 | 1 | 2 | 6 | 5 | 5 | 7 | 8 |
| B | 19 | 19 | 18 | 18 | 22 | 33 | 36 | 36 | 39 | 37 |
| O | 48 | 43 | 53 | 52 | 68 | 107 | 143 | 172 | 162 | 181 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 44.8% | 46.2% | 41.9% | 41.8% | 38.3% | 38.1% | 40.1% | 39.8% | 38.8% | 39.2% |
| AB | 1.6% | 1.7% | 0.8% | 0.8% | 1.3% | 2.5% | 1.6% | 1.4% | 2.1% | 2.2% |
| B | 15.2% | 16.0% | 14.5% | 14.8% | 14.8% | 14.0% | 11.7% | 10.2% | 11.5% | 9.9% |
| O | 38.4% | 36.1% | 42.7% | 42.6% | 45.6% | 45.3% | 46.6% | 48.6% | 47.6% | 48.7% |