Value | Category | Cases | |
---|---|---|---|
1953 | 7 |
0.2%
|
|
1954 | 21 |
0.5%
|
|
1955 | 32 |
0.8%
|
|
1956 | 54 |
1.3%
|
|
1957 | 72 |
1.7%
|
|
1958 | 71 |
1.7%
|
|
1959 | 76 |
1.8%
|
|
1960 | 97 |
2.3%
|
|
1961 | 110 |
2.6%
|
|
1962 | 122 |
2.9%
|
|
1963 | 121 |
2.9%
|
|
1964 | 128 |
3.1%
|
|
1965 | 109 |
2.6%
|
|
1966 | 134 |
3.2%
|
|
1967 | 148 |
3.5%
|
|
1968 | 158 |
3.8%
|
|
1969 | 149 |
3.6%
|
|
1970 | 180 |
4.3%
|
|
1971 | 138 |
3.3%
|
|
1972 | 143 |
3.4%
|
|
1973 | 149 |
3.6%
|
|
1974 | 166 |
4%
|
|
1975 | 147 |
3.5%
|
|
1976 | 148 |
3.5%
|
|
1977 | 139 |
3.3%
|
|
1978 | 139 |
3.3%
|
|
1979 | 143 |
3.4%
|
|
1980 | 141 |
3.4%
|
|
1981 | 103 |
2.5%
|
|
1982 | 98 |
2.3%
|
|
1983 | 94 |
2.2%
|
|
1984 | 96 |
2.3%
|
|
1985 | 99 |
2.4%
|
|
1986 | 99 |
2.4%
|
|
1987 | 85 |
2%
|
|
1988 | 57 |
1.4%
|
|
1989 | 61 |
1.5%
|
|
1990 | 54 |
1.3%
|
|
1991 | 23 |
0.5%
|
|
1992 | 37 |
0.9%
|
|
1993 | 20 |
0.5%
|
|
1994 | 9 |
0.2%
|
|
9997 | Inconsistent | 12 |
0.3%
|
9998 | DK year | 4 |
0.1%
|
9999 | 10 |