| Value | Category | Cases | |
|---|---|---|---|
| 1950 | 64 |
0.4%
|
|
| 1951 | 153 |
1%
|
|
| 1952 | 195 |
1.3%
|
|
| 1953 | 207 |
1.3%
|
|
| 1954 | 204 |
1.3%
|
|
| 1955 | 258 |
1.7%
|
|
| 1956 | 195 |
1.3%
|
|
| 1957 | 247 |
1.6%
|
|
| 1958 | 237 |
1.5%
|
|
| 1959 | 264 |
1.7%
|
|
| 1960 | 329 |
2.1%
|
|
| 1961 | 236 |
1.5%
|
|
| 1962 | 358 |
2.3%
|
|
| 1963 | 323 |
2.1%
|
|
| 1964 | 299 |
1.9%
|
|
| 1965 | 346 |
2.3%
|
|
| 1966 | 283 |
1.8%
|
|
| 1967 | 334 |
2.2%
|
|
| 1968 | 293 |
1.9%
|
|
| 1969 | 335 |
2.2%
|
|
| 1970 | 393 |
2.6%
|
|
| 1971 | 302 |
2%
|
|
| 1972 | 347 |
2.3%
|
|
| 1973 | 327 |
2.1%
|
|
| 1974 | 305 |
2%
|
|
| 1975 | 311 |
2%
|
|
| 1976 | 215 |
1.4%
|
|
| 1977 | 224 |
1.5%
|
|
| 1978 | 244 |
1.6%
|
|
| 1979 | 385 |
2.5%
|
|
| 1980 | 520 |
3.4%
|
|
| 1981 | 497 |
3.2%
|
|
| 1982 | 545 |
3.6%
|
|
| 1983 | 546 |
3.6%
|
|
| 1984 | 612 |
4%
|
|
| 1985 | 276 |
1.8%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | dk year | 4133 |
26.9%
|
| Sysmiss | 9 |