| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 4,194 | 4,228 | 4,612 | 5,357 | 6,038 | 8,051 | 11,874 | 15,442 | 19,292 | 23,089 |
| A | 1,363 | 1,353 | 1,411 | 1,658 | 1,826 | 2,414 | 3,599 | 4,648 | 5,805 | 6,945 |
| AB | 131 | 138 | 136 | 163 | 198 | 283 | 343 | 480 | 636 | 780 |
| B | 644 | 671 | 710 | 836 | 917 | 1,229 | 1,904 | 2,491 | 3,060 | 3,611 |
| O | 2,056 | 2,066 | 2,355 | 2,700 | 3,097 | 4,125 | 6,028 | 7,823 | 9,791 | 11,753 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 32.5% | 32.0% | 30.6% | 31.0% | 30.2% | 30.0% | 30.3% | 30.1% | 30.1% | 30.1% |
| AB | 3.1% | 3.3% | 2.9% | 3.0% | 3.3% | 3.5% | 2.9% | 3.1% | 3.3% | 3.4% |
| B | 15.4% | 15.9% | 15.4% | 15.6% | 15.2% | 15.3% | 16.0% | 16.1% | 15.9% | 15.6% |
| O | 49.0% | 48.9% | 51.1% | 50.4% | 51.3% | 51.2% | 50.8% | 50.7% | 50.8% | 50.9% |