Value | Category | Cases | |
---|---|---|---|
1954 | 1 |
0.1%
|
|
1956 | 2 |
0.2%
|
|
1963 | 1 |
0.1%
|
|
1971 | 1 |
0.1%
|
|
1981 | 1 |
0.1%
|
|
1987 | 1 |
0.1%
|
|
9999 | 9999. Don't know | 0 |
0%
|
Sysmiss | 992 |