| Value | Category | Cases | |
|---|---|---|---|
| 1931 | 1 |
0%
|
|
| 1934 | 1 |
0%
|
|
| 1938 | 1 |
0%
|
|
| 1942 | 2 |
0%
|
|
| 1943 | 3 |
0%
|
|
| 1944 | 2 |
0%
|
|
| 1945 | 1 |
0%
|
|
| 1946 | 2 |
0%
|
|
| 1947 | 13 |
0%
|
|
| 1948 | 1641 |
0.8%
|
|
| 1949 | 3390 |
1.6%
|
|
| 1950 | 3813 |
1.8%
|
|
| 1951 | 4225 |
2%
|
|
| 1952 | 4524 |
2.1%
|
|
| 1953 | 5022 |
2.3%
|
|
| 1954 | 5461 |
2.5%
|
|
| 1955 | 5580 |
2.6%
|
|
| 1956 | 5857 |
2.7%
|
|
| 1957 | 5759 |
2.7%
|
|
| 1958 | 5663 |
2.6%
|
|
| 1959 | 6700 |
3.1%
|
|
| 1960 | 6957 |
3.2%
|
|
| 1961 | 7823 |
3.6%
|
|
| 1962 | 8653 |
4%
|
|
| 1963 | 8778 |
4.1%
|
|
| 1964 | 9198 |
4.3%
|
|
| 1965 | 9268 |
4.3%
|
|
| 1966 | 8508 |
4%
|
|
| 1967 | 8463 |
3.9%
|
|
| 1968 | 8016 |
3.7%
|
|
| 1969 | 7344 |
3.4%
|
|
| 1970 | 6847 |
3.2%
|
|
| 1971 | 6517 |
3%
|
|
| 1972 | 6877 |
3.2%
|
|
| 1973 | 6479 |
3%
|
|
| 1974 | 6910 |
3.2%
|
|
| 1975 | 6570 |
3.1%
|
|
| 1976 | 6108 |
2.8%
|
|
| 1977 | 6039 |
2.8%
|
|
| 1978 | 5847 |
2.7%
|
|
| 1979 | 5140 |
2.4%
|
|
| 1980 | 4030 |
1.9%
|
|
| 1981 | 2979 |
1.4%
|
|
| 1982 | 1695 |
0.8%
|
|
| 1983 | 1196 |
0.6%
|
|
| 1984 | 563 |
0.3%
|
|
| 1985 | 374 |
0.2%
|
|
| 1986 | 36 |
0%
|
|
| 1987 | 18 |
0%
|
|
| 1988 | 5 |
0%
|
|
| 1989 | 1 |
0%
|