| Value | Category | Cases | |
|---|---|---|---|
| 1962 | 1 |
0%
|
|
| 1965 | 2 |
0%
|
|
| 1968 | 3 |
0%
|
|
| 1969 | 2 |
0%
|
|
| 1970 | 4 |
0%
|
|
| 1971 | 2 |
0%
|
|
| 1972 | 15 |
0.1%
|
|
| 1973 | 7 |
0.1%
|
|
| 1974 | 19 |
0.2%
|
|
| 1975 | 29 |
0.3%
|
|
| 1976 | 34 |
0.3%
|
|
| 1977 | 60 |
0.5%
|
|
| 1978 | 85 |
0.7%
|
|
| 1979 | 107 |
0.9%
|
|
| 1980 | 182 |
1.6%
|
|
| 1981 | 127 |
1.1%
|
|
| 1982 | 162 |
1.4%
|
|
| 1983 | 152 |
1.3%
|
|
| 1984 | 153 |
1.3%
|
|
| 1985 | 192 |
1.7%
|
|
| 1986 | 192 |
1.7%
|
|
| 1987 | 200 |
1.8%
|
|
| 1988 | 234 |
2.1%
|
|
| 1989 | 244 |
2.1%
|
|
| 1990 | 300 |
2.6%
|
|
| 1991 | 235 |
2.1%
|
|
| 1992 | 270 |
2.4%
|
|
| 1993 | 300 |
2.6%
|
|
| 1994 | 358 |
3.1%
|
|
| 1995 | 411 |
3.6%
|
|
| 1996 | 388 |
3.4%
|
|
| 1997 | 433 |
3.8%
|
|
| 1998 | 479 |
4.2%
|
|
| 1999 | 499 |
4.4%
|
|
| 2000 | 572 |
5%
|
|
| 2001 | 464 |
4.1%
|
|
| 2002 | 569 |
5%
|
|
| 2003 | 600 |
5.3%
|
|
| 2004 | 577 |
5.1%
|
|
| 2005 | 615 |
5.4%
|
|
| 2006 | 607 |
5.3%
|
|
| 2007 | 564 |
5%
|
|
| 2008 | 194 |
1.7%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | DK | 741 |
6.5%
|
| 9999 | Missing | 6 |
0.1%
|
| Sysmiss | 4780 |