value | category | cases | |
---|---|---|---|
1998 | 1 |
0%
|
|
1999 | 240 |
7.4%
|
|
2000 | 517 |
16%
|
|
2001 | 680 |
21.1%
|
|
2002 | 943 |
29.3%
|
|
2003 | 825 |
25.6%
|
|
9997 | Inconsistent | 17 |
0.5%
|
9998 | DK | 0 |
0%
|
Sysmiss | 7422 |