| Value | Category | Cases | |
|---|---|---|---|
| 1960 | 1 |
0%
|
|
| 1965 | 2 |
0%
|
|
| 1966 | 2 |
0%
|
|
| 1967 | 18 |
0%
|
|
| 1968 | 206 |
0.1%
|
|
| 1969 | 68 |
0%
|
|
| 1970 | 437 |
0.2%
|
|
| 1971 | 1098 |
0.5%
|
|
| 1972 | 3275 |
1.5%
|
|
| 1973 | 1551 |
0.7%
|
|
| 1974 | 905 |
0.4%
|
|
| 1975 | 2347 |
1.1%
|
|
| 1976 | 3182 |
1.5%
|
|
| 1977 | 4049 |
1.9%
|
|
| 1978 | 4740 |
2.2%
|
|
| 1979 | 13409 |
6.3%
|
|
| 1980 | 248 |
0.1%
|
|
| 1981 | 379 |
0.2%
|
|
| 1982 | 3425 |
1.6%
|
|
| 1983 | 2842 |
1.3%
|
|
| 1984 | 8288 |
3.9%
|
|
| 1985 | 4919 |
2.3%
|
|
| 1986 | 2385 |
1.1%
|
|
| 1987 | 4588 |
2.2%
|
|
| 1988 | 6543 |
3.1%
|
|
| 1989 | 17005 |
8%
|
|
| 1990 | 25133 |
11.9%
|
|
| 1991 | 3148 |
1.5%
|
|
| 1992 | 11248 |
5.3%
|
|
| 1993 | 8488 |
4%
|
|
| 1994 | 3717 |
1.8%
|
|
| 1995 | 3153 |
1.5%
|
|
| 1996 | 2984 |
1.4%
|
|
| 1997 | 5261 |
2.5%
|
|
| 1998 | 8025 |
3.8%
|
|
| 1999 | 4069 |
1.9%
|
|
| 2000 | 3941 |
1.9%
|
|
| 2001 | 3925 |
1.9%
|
|
| 2002 | 2841 |
1.3%
|
|
| 2003 | 3944 |
1.9%
|
|
| 2004 | 3502 |
1.7%
|
|
| 2005 | 18955 |
9%
|
|
| 2006 | 8635 |
4.1%
|
|
| 2007 | 4557 |
2.2%
|
|
| Sysmiss | 20 |