| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 123 | 192 | 260 | 285 | 300 | 264 | 208 | 241 | 241 | 209 |
| A | 43 | 75 | 89 | 99 | 101 | 94 | 94 | 95 | 76 | 63 |
| AB | 4 | 4 | 6 | 4 | 7 | 8 | 6 | 8 | 6 | 4 |
| B | 10 | 20 | 28 | 35 | 33 | 28 | 15 | 26 | 33 | 28 |
| O | 66 | 93 | 137 | 147 | 159 | 134 | 93 | 112 | 126 | 114 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 35.0% | 39.1% | 34.2% | 34.7% | 33.7% | 35.6% | 45.2% | 39.4% | 31.5% | 30.1% |
| AB | 3.3% | 2.1% | 2.3% | 1.4% | 2.3% | 3.0% | 2.9% | 3.3% | 2.5% | 1.9% |
| B | 8.1% | 10.4% | 10.8% | 12.3% | 11.0% | 10.6% | 7.2% | 10.8% | 13.7% | 13.4% |
| O | 53.7% | 48.4% | 52.7% | 51.6% | 53.0% | 50.8% | 44.7% | 46.5% | 52.3% | 54.5% |