Value | Category | Cases | |
---|---|---|---|
-9 | Don't know | 1 |
1.6%
|
1965 | 1 |
1.6%
|
|
1974 | 1 |
1.6%
|
|
1978 | 2 |
3.1%
|
|
1985 | 2 |
3.1%
|
|
1987 | 2 |
3.1%
|
|
1988 | 1 |
1.6%
|
|
1991 | 1 |
1.6%
|
|
1992 | 3 |
4.7%
|
|
1993 | 2 |
3.1%
|
|
1995 | 2 |
3.1%
|
|
1997 | 2 |
3.1%
|
|
1998 | 6 |
9.4%
|
|
1999 | 2 |
3.1%
|
|
2000 | 11 |
17.2%
|
|
2001 | 2 |
3.1%
|
|
2002 | 2 |
3.1%
|
|
2003 | 3 |
4.7%
|
|
2004 | 3 |
4.7%
|
|
2005 | 2 |
3.1%
|
|
2006 | 1 |
1.6%
|
|
2007 | 4 |
6.3%
|
|
2008 | 5 |
7.8%
|
|
2010 | 1 |
1.6%
|
|
2012 | 2 |
3.1%
|
|
Sysmiss | 418 |