Value | Category | Cases | |
---|---|---|---|
1951 | 1 |
0%
|
|
1953 | 1 |
0%
|
|
1954 | 1 |
0%
|
|
1955 | 1 |
0%
|
|
1957 | 2 |
0%
|
|
1958 | 8 |
0.1%
|
|
1959 | 7 |
0.1%
|
|
1960 | 27 |
0.4%
|
|
1961 | 34 |
0.5%
|
|
1962 | 43 |
0.6%
|
|
1963 | 55 |
0.8%
|
|
1964 | 62 |
0.9%
|
|
1965 | 77 |
1.1%
|
|
1966 | 122 |
1.7%
|
|
1967 | 107 |
1.5%
|
|
1968 | 134 |
1.8%
|
|
1969 | 167 |
2.3%
|
|
1970 | 208 |
2.9%
|
|
1971 | 186 |
2.6%
|
|
1972 | 201 |
2.8%
|
|
1973 | 238 |
3.3%
|
|
1974 | 184 |
2.5%
|
|
1975 | 224 |
3.1%
|
|
1976 | 213 |
2.9%
|
|
1977 | 206 |
2.8%
|
|
1978 | 304 |
4.2%
|
|
1979 | 477 |
6.6%
|
|
1980 | 534 |
7.4%
|
|
1981 | 498 |
6.9%
|
|
1982 | 498 |
6.9%
|
|
1983 | 560 |
7.7%
|
|
1984 | 453 |
6.2%
|
|
1985 | 388 |
5.3%
|
|
1986 | 367 |
5.1%
|
|
1987 | 262 |
3.6%
|
|
1988 | 213 |
2.9%
|
|
1989 | 111 |
1.5%
|
|
1990 | 70 |
1%
|
|
1991 | 15 |
0.2%
|
|
1992 | 4 |
0.1%
|
|
1993 | 1 |
0%
|