| Value | Category | Cases | |
|---|---|---|---|
| -8 | not collected | 0 |
0%
|
| 1979 | 1 |
0%
|
|
| 1980 | 1 |
0%
|
|
| 1983 | 1 |
0%
|
|
| 1984 | 2 |
0%
|
|
| 1986 | 2 |
0%
|
|
| 1987 | 1 |
0%
|
|
| 1988 | 3 |
0%
|
|
| 1989 | 8 |
0.1%
|
|
| 1990 | 16 |
0.1%
|
|
| 1991 | 21 |
0.2%
|
|
| 1992 | 40 |
0.3%
|
|
| 1993 | 1107 |
9.4%
|
|
| 1994 | 1082 |
9.1%
|
|
| 1995 | 1012 |
8.6%
|
|
| 1996 | 1057 |
8.9%
|
|
| 1997 | 1061 |
9%
|
|
| 1998 | 960 |
8.1%
|
|
| 1999 | 1030 |
8.7%
|
|
| 2000 | 1229 |
10.4%
|
|
| 2001 | 822 |
7%
|
|
| 2002 | 825 |
7%
|
|
| 2003 | 1057 |
8.9%
|
|
| 2004 | 489 |
4.1%
|
|
| Sysmiss | 1 |