| Male | Female | Group Total | |||
|---|---|---|---|---|---|
| Median | Median | Median | |||
| Year of Crash | 1991 | 28 | 30 | 29 | |
| 1992 | 30 | 32 | 30 | ||
| 1993 | 30 | 32 | 31 | ||
| 1994 | 30 | 35 | 32 | ||
| 1995 | 31 | 34 | 32 | ||
| 1996 | 33 | 35 | 34 | ||
| 1997 | 33 | 36 | 34 | ||
| 1998 | 33 | 36 | 34 | ||
| 1999 | 33 | 35 | 33 | ||
| 2000 | 33 | 38 | 34 | ||
| 2001 | 33 | 35 | 34 | ||
| 2002 | 34 | 36 | 34 | ||
| 2003 | 33 | 36 | 34 | ||
| 2004 | 33 | 35 | 34 | ||
| Group Total | 32 | 35 | 32 | ||