| Value | Category | Cases | |
|---|---|---|---|
| 1950 | 21 |
0.2%
|
|
| 1951 | 107 |
1.2%
|
|
| 1952 | 257 |
2.9%
|
|
| 1953 | 220 |
2.5%
|
|
| 1954 | 254 |
2.9%
|
|
| 1955 | 262 |
3%
|
|
| 1956 | 240 |
2.8%
|
|
| 1957 | 257 |
2.9%
|
|
| 1958 | 252 |
2.9%
|
|
| 1959 | 249 |
2.9%
|
|
| 1960 | 301 |
3.4%
|
|
| 1961 | 264 |
3%
|
|
| 1962 | 262 |
3%
|
|
| 1963 | 283 |
3.2%
|
|
| 1964 | 280 |
3.2%
|
|
| 1965 | 282 |
3.2%
|
|
| 1966 | 258 |
3%
|
|
| 1967 | 241 |
2.8%
|
|
| 1968 | 245 |
2.8%
|
|
| 1969 | 240 |
2.8%
|
|
| 1970 | 249 |
2.9%
|
|
| 1971 | 272 |
3.1%
|
|
| 1972 | 244 |
2.8%
|
|
| 1973 | 231 |
2.6%
|
|
| 1974 | 265 |
3%
|
|
| 1975 | 254 |
2.9%
|
|
| 1976 | 245 |
2.8%
|
|
| 1977 | 263 |
3%
|
|
| 1978 | 238 |
2.7%
|
|
| 1979 | 245 |
2.8%
|
|
| 1980 | 278 |
3.2%
|
|
| 1981 | 261 |
3%
|
|
| 1982 | 259 |
3%
|
|
| 1983 | 260 |
3%
|
|
| 1984 | 211 |
2.4%
|
|
| 1985 | 127 |
1.5%
|
|
| 9997 | Missing | 0 |
0%
|
| 9999 | DK | 49 |
0.6%
|