Value | Category | Cases | |
---|---|---|---|
1956 | 40 |
0.3%
|
|
1957 | 347 |
2.3%
|
|
1958 | 502 |
3.4%
|
|
1959 | 512 |
3.4%
|
|
1960 | 539 |
3.6%
|
|
1961 | 575 |
3.9%
|
|
1962 | 533 |
3.6%
|
|
1963 | 543 |
3.6%
|
|
1964 | 512 |
3.4%
|
|
1965 | 572 |
3.8%
|
|
1966 | 525 |
3.5%
|
|
1967 | 538 |
3.6%
|
|
1968 | 574 |
3.9%
|
|
1969 | 557 |
3.7%
|
|
1970 | 495 |
3.3%
|
|
1971 | 550 |
3.7%
|
|
1972 | 568 |
3.8%
|
|
1973 | 514 |
3.4%
|
|
1974 | 540 |
3.6%
|
|
1975 | 555 |
3.7%
|
|
1976 | 488 |
3.3%
|
|
1977 | 495 |
3.3%
|
|
1978 | 523 |
3.5%
|
|
1979 | 525 |
3.5%
|
|
1980 | 506 |
3.4%
|
|
1981 | 434 |
2.9%
|
|
1982 | 415 |
2.8%
|
|
1983 | 349 |
2.3%
|
|
1984 | 284 |
1.9%
|
|
1985 | 257 |
1.7%
|
|
1986 | 184 |
1.2%
|
|
1987 | 151 |
1%
|
|
1988 | 108 |
0.7%
|
|
1989 | 62 |
0.4%
|
|
1990 | 21 |
0.1%
|
|
1991 | 12 |
0.1%
|
|
1992 | 3 |
0%
|
|
9997 | Inconsistent | 0 |
0%
|
9998 | DK year | 0 |
0%
|
9999 | 1 |