| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 1 |
0%
|
|
| 1983 | 1 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1988 | 1 |
0%
|
|
| 1990 | 24 |
0.7%
|
|
| 1991 | 87 |
2.5%
|
|
| 1992 | 121 |
3.5%
|
|
| 1993 | 63 |
1.8%
|
|
| 1994 | 48 |
1.4%
|
|
| 1995 | 30 |
0.9%
|
|
| 1996 | 41 |
1.2%
|
|
| 1997 | 40 |
1.2%
|
|
| 1998 | 40 |
1.2%
|
|
| 1999 | 42 |
1.2%
|
|
| 2000 | 36 |
1%
|
|
| 2001 | 33 |
1%
|
|
| 2002 | 1 |
0%
|
|
| 5555 | ***undefined label | 2849 |
82.4%
|
| Sysmiss | 4514 |