| Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 34,496 | 36,948 | 39,956 | 42,219 | 44,263 | 45,479 | 45,294 | 46,120 | 47,060 | 48,773 |
| A | 9,472 | 10,237 | 11,051 | 11,636 | 12,164 | 12,455 | 12,349 | 12,600 | 12,941 | 13,483 |
| AB | 866 | 905 | 1,042 | 1,110 | 1,169 | 1,182 | 1,213 | 1,252 | 1,256 | 1,280 |
| B | 5,956 | 6,238 | 6,849 | 7,189 | 7,572 | 7,848 | 7,690 | 7,730 | 7,799 | 8,101 |
| O | 18,202 | 19,568 | 21,014 | 22,284 | 23,358 | 23,994 | 24,042 | 24,538 | 25,064 | 25,909 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| A | 27.5% | 27.7% | 27.7% | 27.6% | 27.5% | 27.4% | 27.3% | 27.3% | 27.5% | 27.6% |
| AB | 2.5% | 2.4% | 2.6% | 2.6% | 2.6% | 2.6% | 2.7% | 2.7% | 2.7% | 2.6% |
| B | 17.3% | 16.9% | 17.1% | 17.0% | 17.1% | 17.3% | 17.0% | 16.8% | 16.6% | 16.6% |
| O | 52.8% | 53.0% | 52.6% | 52.8% | 52.8% | 52.8% | 53.1% | 53.2% | 53.3% | 53.1% |