| Patient Status | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 2,477 | 2,420 | 2,255 | 2,054 | 1,808 | 1,588 | 1,329 | 1,323 | 1,406 | 1,684 |
| 1A | 115 | 80 | 107 | 111 | 88 | 99 | 77 | 99 | 134 | 166 |
| 1B | 347 | 434 | 331 | 326 | 355 | 340 | 322 | 285 | 341 | 607 |
| 2 | 2,014 | 1,906 | 1,817 | 1,617 | 1,365 | 1,149 | 930 | 939 | 931 | 911 |
| Unknown | 1 | - | - | - | - | - | - | - | - | - |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| 1A | 4.6% | 3.3% | 4.7% | 5.4% | 4.9% | 6.2% | 5.8% | 7.5% | 9.5% | 9.9% |
| 1B | 14.0% | 17.9% | 14.7% | 15.9% | 19.6% | 21.4% | 24.2% | 21.5% | 24.3% | 36.0% |
| 2 | 81.3% | 78.8% | 80.6% | 78.7% | 75.5% | 72.4% | 70.0% | 71.0% | 66.2% | 54.1% |
| Unknown | 0.0% | - | - | - | - | - | - | - | - | - |