Value | Category | Cases | |
---|---|---|---|
1998 | 1 |
3%
|
|
2004 | 1 |
3%
|
|
2006 | 1 |
3%
|
|
2007 | 2 |
6.1%
|
|
9997 | Inconsistent | 0 |
0%
|
9999 | Missing | 28 |
84.8%
|
Sysmiss | 1424 |