| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 236 | 342 | 464 | 487 | 536 | 421 | 331 | 290 | 233 | 226 |
| A | 93 | 136 | 183 | 174 | 191 | 155 | 113 | 92 | 76 | 84 |
| AB | 8 | 8 | 18 | 13 | 19 | 14 | 7 | 12 | 4 | 1 |
| B | 22 | 32 | 47 | 65 | 69 | 37 | 30 | 34 | 27 | 28 |
| O | 113 | 166 | 216 | 235 | 257 | 215 | 181 | 152 | 126 | 113 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 39.4% | 39.8% | 39.4% | 35.7% | 35.6% | 36.8% | 34.1% | 31.7% | 32.6% | 37.2% |
| AB | 3.4% | 2.3% | 3.9% | 2.7% | 3.5% | 3.3% | 2.1% | 4.1% | 1.7% | 0.4% |
| B | 9.3% | 9.4% | 10.1% | 13.3% | 12.9% | 8.8% | 9.1% | 11.7% | 11.6% | 12.4% |
| O | 47.9% | 48.5% | 46.6% | 48.3% | 47.9% | 51.1% | 54.7% | 52.4% | 54.1% | 50.0% |