| Gender | Year | ||||||||||
| 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | ||
| Total | Patients | 69 | 74 | 73 | 79 | 108 | 132 | 193 | 240 | 243 | 267 |
| Deaths | 5 | 2 | 5 | 1 | 3 | 3 | 1 | 3 | 0 | 5 | |
| Rate | 145.6 | 51.1 | 162.4 | 22.5 | 63.0 | 46.5 | 10.3 | 25.7 | 0.0 | 39.0 | |
| Female | Patients | 44 | 48 | 44 | 43 | 63 | 78 | 113 | 128 | 123 | 149 |
| Deaths | 4 | 2 | 2 | 1 | 2 | 1 | 1 | 3 | 0 | 1 | |
| Rate | 205.2 | 74.8 | 108.7 | 40.2 | 73.0 | 26.8 | 17.5 | 45.2 | 0.0 | 14.4 | |
| Male | Patients | 25 | 26 | 29 | 36 | 45 | 54 | 80 | 112 | 120 | 118 |
| Deaths | 1 | 0 | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 4 | |
| Rate | 67.3 | 0.0 | 242.0 | 0.0 | 49.5 | 73.5 | 0.0 | 0.0 | 0.0 | 68.3 | |