| Value | Category | Cases | |
|---|---|---|---|
| 1950 | 6 |
0.2%
|
|
| 1951 | 9 |
0.3%
|
|
| 1952 | 28 |
0.9%
|
|
| 1953 | 19 |
0.6%
|
|
| 1954 | 16 |
0.5%
|
|
| 1955 | 16 |
0.5%
|
|
| 1956 | 22 |
0.7%
|
|
| 1957 | 23 |
0.7%
|
|
| 1958 | 42 |
1.3%
|
|
| 1959 | 46 |
1.4%
|
|
| 1960 | 44 |
1.4%
|
|
| 1961 | 37 |
1.1%
|
|
| 1962 | 51 |
1.6%
|
|
| 1963 | 78 |
2.4%
|
|
| 1964 | 89 |
2.7%
|
|
| 1965 | 66 |
2%
|
|
| 1966 | 56 |
1.7%
|
|
| 1967 | 75 |
2.3%
|
|
| 1968 | 84 |
2.6%
|
|
| 1969 | 102 |
3.1%
|
|
| 1970 | 135 |
4.1%
|
|
| 1971 | 72 |
2.2%
|
|
| 1972 | 143 |
4.4%
|
|
| 1973 | 130 |
4%
|
|
| 1974 | 187 |
5.7%
|
|
| 1975 | 153 |
4.7%
|
|
| 1976 | 158 |
4.9%
|
|
| 1977 | 155 |
4.8%
|
|
| 1978 | 236 |
7.2%
|
|
| 1979 | 213 |
6.5%
|
|
| 1980 | 207 |
6.4%
|
|
| 1981 | 106 |
3.3%
|
|
| 1982 | 184 |
5.7%
|
|
| 1983 | 113 |
3.5%
|
|
| 1984 | 115 |
3.5%
|
|
| 1985 | 37 |
1.1%
|
|
| 9993 | inconsistent | 0 |
0%
|
| 9998 | don't know | 3 |
0.1%
|
| 9999 | not applicable | 0 |
0%
|
| 9999995 | missing:impute | 0 |
0%
|
