| Year |
Alcohol Involved | ||||
|---|---|---|---|---|---|
| Not Alcohol or Unknown | Alcohol-involved | Group Total | |||
| 1991 | 8.52 | 6.77 | 15.29 | ||
| 1992 | 7.58 | 5.91 | 13.49 | ||
| 1993 | 8.26 | 5.02 | 13.28 | ||
| 1994 | 8.63 | 4.73 | 13.36 | ||
| 1995 | 8.90 | 4.24 | 13.14 | ||
| 1996 | 8.50 | 3.92 | 12.43 | ||
| 1997 | 7.92 | 3.39 | 11.31 | ||
| 1998 | 7.26 | 3.26 | 10.53 | ||
| 1999 | 7.13 | 3.50 | 10.64 | ||
| 2000 | 7.33 | 3.62 | 10.95 | ||
| 2001 | 7.54 | 3.77 | 11.30 | ||
| 2002 | 7.58 | 3.99 | 11.57 | ||
| 2003 | 7.74 | 4.02 | 11.76 | ||
| 2004 | 7.24 | 4.02 | 11.25 | ||
| 2005 | 7.41 | 4.27 | 11.68 | ||