Value | Category | Cases | |
---|---|---|---|
-9 | Don't know | 14 |
20.9%
|
1980 | 1 |
1.5%
|
|
1989 | 1 |
1.5%
|
|
1990 | 1 |
1.5%
|
|
1997 | 1 |
1.5%
|
|
2000 | 2 |
3%
|
|
2001 | 2 |
3%
|
|
2002 | 3 |
4.5%
|
|
2003 | 1 |
1.5%
|
|
2004 | 2 |
3%
|
|
2005 | 4 |
6%
|
|
2006 | 4 |
6%
|
|
2007 | 6 |
9%
|
|
2008 | 21 |
31.3%
|
|
2009 | 3 |
4.5%
|
|
2010 | 1 |
1.5%
|
|
Sysmiss | 97 |