| Gender | Year | ||||||||||
| 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | ||
| Total | Patients | 203 | 246 | 273 | 322 | 375 | 425 | 477 | 495 | 608 | 657 |
| Deaths | 1 | 7 | 3 | 3 | 7 | 11 | 16 | 5 | 19 | 11 | |
| Rate | 9.4 | 47.2 | 17.4 | 16.3 | 32.4 | 46.7 | 62.8 | 18.1 | 54.1 | 28.0 | |
| Female | Patients | 107 | 129 | 143 | 155 | 181 | 197 | 248 | 258 | 323 | 371 |
| Deaths | 1 | 6 | 2 | 1 | 3 | 3 | 10 | 5 | 8 | 5 | |
| Rate | 17.4 | 80.1 | 22.3 | 11.7 | 31.0 | 27.6 | 80.7 | 34.7 | 42.9 | 22.6 | |
| Male | Patients | 96 | 117 | 130 | 167 | 194 | 228 | 229 | 237 | 285 | 286 |
| Deaths | - | 1 | 1 | 2 | 4 | 8 | 6 | - | 11 | 6 | |
| Rate | - | 13.6 | 12.0 | 20.3 | 33.6 | 63.1 | 45.9 | - | 66.8 | 35.1 | |