| Value | Category | Cases | |
|---|---|---|---|
| 1937 | 1 | 
                                
                                0%
                             | |
| 1938 | 1 | 
                                
                                0%
                             | |
| 1941 | 1 | 
                                
                                0%
                             | |
| 1943 | 2 | 
                                
                                0.1%
                             | |
| 1947 | 3 | 
                                
                                0.1%
                             | |
| 1948 | 2 | 
                                
                                0.1%
                             | |
| 1949 | 2 | 
                                
                                0.1%
                             | |
| 1952 | 9 | 
                                
                                0.3%
                             | |
| 1953 | 10 | 
                                
                                0.4%
                             | |
| 1954 | 43 | 
                                
                                1.7%
                             | |
| 1955 | 24 | 
                                
                                0.9%
                             | |
| 1956 | 27 | 
                                
                                1%
                             | |
| 1957 | 25 | 
                                
                                1%
                             | |
| 1958 | 58 | 
                                
                                2.2%
                             | |
| 1959 | 45 | 
                                
                                1.7%
                             | |
| 1960 | 50 | 
                                
                                1.9%
                             | |
| 1961 | 45 | 
                                
                                1.7%
                             | |
| 1962 | 72 | 
                                
                                2.8%
                             | |
| 1963 | 71 | 
                                
                                2.7%
                             | |
| 1964 | 54 | 
                                
                                2.1%
                             | |
| 1965 | 78 | 
                                
                                3%
                             | |
| 1966 | 70 | 
                                
                                2.7%
                             | |
| 1967 | 69 | 
                                
                                2.7%
                             | |
| 1968 | 116 | 
                                
                                4.5%
                             | |
| 1969 | 90 | 
                                
                                3.5%
                             | |
| 1970 | 85 | 
                                
                                3.3%
                             | |
| 1971 | 47 | 
                                
                                1.8%
                             | |
| 1972 | 88 | 
                                
                                3.4%
                             | |
| 1973 | 64 | 
                                
                                2.5%
                             | |
| 1974 | 92 | 
                                
                                3.6%
                             | |
| 1975 | 68 | 
                                
                                2.6%
                             | |
| 1976 | 83 | 
                                
                                3.2%
                             | |
| 1977 | 68 | 
                                
                                2.6%
                             | |
| 1978 | 110 | 
                                
                                4.3%
                             | |
| 1979 | 72 | 
                                
                                2.8%
                             | |
| 1980 | 88 | 
                                
                                3.4%
                             | |
| 1981 | 70 | 
                                
                                2.7%
                             | |
| 1982 | 97 | 
                                
                                3.8%
                             | |
| 1983 | 59 | 
                                
                                2.3%
                             | |
| 1984 | 93 | 
                                
                                3.6%
                             | |
| 1985 | 69 | 
                                
                                2.7%
                             | |
| 1986 | 73 | 
                                
                                2.8%
                             | |
| 1987 | 52 | 
                                
                                2%
                             | |
| 1988 | 47 | 
                                
                                1.8%
                             | |
| 1989 | 25 | 
                                
                                1%
                             | |
| 1990 | 8 | 
                                
                                0.3%
                             | |
| 1991 | 2 | 
                                
                                0.1%
                             | |
| 1992 | 3 | 
                                
                                0.1%
                             | |
| 1996 | 1 | 
                                
                                0%
                             | |
| 9995 | Missing | 110 | 
                                
                                4.3%
                             | 
| 9996 | Other | 0 | 
                                
                                0%
                             | 
| 9997 | Refused | 23 | 
                                
                                0.9%
                             | 
| 9998 | Dont Know | 17 | 
                                
                                0.7%
                             | 
| 9999 | Not Applicable | 0 | 
                                
                                0%
                             |