| Value | Category | Cases | |
|---|---|---|---|
| 6 | 1 |
0%
|
|
| 31 | 1 |
0%
|
|
| 93 | 1 |
0%
|
|
| 1995 | 55 |
1.4%
|
|
| 1996 | 524 |
13.6%
|
|
| 1997 | 663 |
17.3%
|
|
| 1998 | 801 |
20.8%
|
|
| 1999 | 1014 |
26.4%
|
|
| 2000 | 783 |
20.4%
|
|
| 9997 | Missing | 0 |
0%
|
| Sysmiss | 3423 |