| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1949 | 1 | 1 |
0.1%
|
|
| 1955 | 5 | 8 |
0.8%
|
|
| 1957 | 1 | 2 |
0.2%
|
|
| 1958 | 2 | 1 |
0.1%
|
|
| 1959 | 2 | 3 |
0.3%
|
|
| 1960 | 1 | 1 |
0.1%
|
|
| 1961 | 4 | 2 |
0.2%
|
|
| 1964 | 1 | 1 |
0.1%
|
|
| 1965 | 3 | 2 |
0.2%
|
|
| 1966 | 3 | 2 |
0.2%
|
|
| 1967 | 5 | 6 |
0.6%
|
|
| 1968 | 4 | 4 |
0.4%
|
|
| 1969 | 3 | 3 |
0.3%
|
|
| 1970 | 8 | 5 |
0.5%
|
|
| 1971 | 9 | 9 |
0.9%
|
|
| 1972 | 11 | 19 |
1.8%
|
|
| 1973 | 3 | 3 |
0.3%
|
|
| 1974 | 8 | 7 |
0.7%
|
|
| 1975 | 12 | 8 |
0.8%
|
|
| 1976 | 8 | 9 |
0.9%
|
|
| 1977 | 8 | 8 |
0.7%
|
|
| 1978 | 15 | 15 |
1.5%
|
|
| 1979 | 15 | 12 |
1.2%
|
|
| 1980 | 11 | 11 |
1.1%
|
|
| 1981 | 16 | 11 |
1%
|
|
| 1982 | 10 | 12 |
1.2%
|
|
| 1983 | 14 | 15 |
1.5%
|
|
| 1984 | 14 | 20 |
2%
|
|
| 1985 | 23 | 32 |
3.1%
|
|
| 1986 | 14 | 19 |
1.8%
|
|
| 1987 | 18 | 17 |
1.7%
|
|
| 1988 | 23 | 24 |
2.4%
|
|
| 1989 | 30 | 28 |
2.7%
|
|
| 1990 | 21 | 24 |
2.3%
|
|
| 1991 | 22 | 20 |
2%
|
|
| 1992 | 50 | 47 |
4.6%
|
|
| 1993 | 87 | 94 |
9.2%
|
|
| 1994 | 57 | 58 |
5.7%
|
|
| 1995 | 21 | 26 |
2.6%
|
|
| 1996 | 105 | 103 |
10.2%
|
|
| 1997 | 62 | 75 |
7.4%
|
|
| 1998 | 106 | 95 |
9.4%
|
|
| 1999 | 98 | 86 |
8.5%
|
|
| 2000 | 66 | 54 |
5.3%
|
|
| 2001 | 17 | 16 |
1.5%
|
|
| 9998 | NSP | 1 | 0 |
0%
|
| 9999 | 20 | 20 | ||
| Sysmiss | 4 | 0 |