| Value | Category | Cases | |
|---|---|---|---|
| 99 | Don't Know | 0 |
0%
|
| 1995 | 1 |
0.6%
|
|
| 1996 | 2 |
1.3%
|
|
| 1997 | 2 |
1.3%
|
|
| 1998 | 3 |
1.9%
|
|
| 1999 | 8 |
5.1%
|
|
| 2000 | 11 |
7.1%
|
|
| 2001 | 14 |
9%
|
|
| 2002 | 28 |
17.9%
|
|
| 2003 | 38 |
24.4%
|
|
| 2004 | 43 |
27.6%
|
|
| 2005 | 6 |
3.8%
|
|
| Sysmiss | 1403 |