Value | Category | Cases | |
---|---|---|---|
1998 | 1 |
2.2%
|
|
2005 | 2 |
4.3%
|
|
2006 | 3 |
6.5%
|
|
2007 | 4 |
8.7%
|
|
2008 | 8 |
17.4%
|
|
2009 | 13 |
28.3%
|
|
9997 | Inconsistent | 0 |
0%
|
9998 | Don't know year | 9 |
19.6%
|
9999 | 6 |
13%
|
|
Sysmiss | 1037 |