Value | Category | Cases | |
---|---|---|---|
-2 | don't know | 27 |
48.2%
|
7 | 1 |
1.8%
|
|
1490 | 1 |
1.8%
|
|
1970 | 3 |
5.4%
|
|
1980 | 4 |
7.1%
|
|
1982 | 1 |
1.8%
|
|
1984 | 1 |
1.8%
|
|
1985 | 2 |
3.6%
|
|
1988 | 2 |
3.6%
|
|
1990 | 7 |
12.5%
|
|
1992 | 1 |
1.8%
|
|
1999 | 1 |
1.8%
|
|
2000 | 1 |
1.8%
|
|
2006 | 3 |
5.4%
|
|
2009 | 1 |
1.8%
|
|
Sysmiss | 993 |