| Donor Blood Type | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | |
| Total | 38 | 53 | 58 | 36 | 49 | 25 | 29 | 28 | 2 | 5 |
| O | 31 | 39 | 45 | 27 | 35 | 18 | 17 | 25 | 2 | 4 |
| A | 6 | 10 | 12 | 8 | 11 | 7 | 9 | 3 | - | 1 |
| B | 1 | 2 | 1 | 1 | 2 | - | 2 | - | - | - |
| AB | - | 2 | - | - | 1 | - | 1 | - | - | - |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| O | 81.6% | 73.6% | 77.6% | 75.0% | 71.4% | 72.0% | 58.6% | 89.3% | 100.0% | 80.0% |
| A | 15.8% | 18.9% | 20.7% | 22.2% | 22.4% | 28.0% | 31.0% | 10.7% | - | 20.0% |
| B | 2.6% | 3.8% | 1.7% | 2.8% | 4.1% | - | 6.9% | - | - | - |
| AB | - | 3.8% | - | - | 2.0% | - | 3.4% | - | - | - |