| Value | Category | Cases | |
|---|---|---|---|
| 1961 | 1 |
0%
|
|
| 1963 | 4 |
0.2%
|
|
| 1964 | 1 |
0%
|
|
| 1972 | 1 |
0%
|
|
| 1973 | 1 |
0%
|
|
| 1974 | 2 |
0.1%
|
|
| 1975 | 6 |
0.3%
|
|
| 1976 | 3 |
0.1%
|
|
| 1978 | 3 |
0.1%
|
|
| 1979 | 6 |
0.3%
|
|
| 1980 | 11 |
0.5%
|
|
| 1981 | 4 |
0.2%
|
|
| 1982 | 4 |
0.2%
|
|
| 1983 | 11 |
0.5%
|
|
| 1984 | 12 |
0.5%
|
|
| 1985 | 9 |
0.4%
|
|
| 1986 | 11 |
0.5%
|
|
| 1987 | 9 |
0.4%
|
|
| 1988 | 30 |
1.4%
|
|
| 1989 | 9 |
0.4%
|
|
| 1990 | 31 |
1.4%
|
|
| 1991 | 19 |
0.9%
|
|
| 1992 | 31 |
1.4%
|
|
| 1993 | 43 |
2%
|
|
| 1994 | 15 |
0.7%
|
|
| 1995 | 39 |
1.8%
|
|
| 1996 | 32 |
1.5%
|
|
| 1997 | 37 |
1.7%
|
|
| 1998 | 68 |
3.1%
|
|
| 1999 | 33 |
1.5%
|
|
| 2000 | 57 |
2.6%
|
|
| 2001 | 61 |
2.8%
|
|
| 2002 | 51 |
2.3%
|
|
| 2003 | 99 |
4.5%
|
|
| 2004 | 75 |
3.4%
|
|
| 2005 | 68 |
3.1%
|
|
| 2006 | 83 |
3.8%
|
|
| 2007 | 63 |
2.9%
|
|
| 2008 | 106 |
4.8%
|
|
| 2009 | 155 |
7%
|
|
| 2010 | 226 |
10.3%
|
|
| 2011 | 236 |
10.7%
|
|
| 2012 | 193 |
8.8%
|
|
| 2013 | 230 |
10.4%
|
|
| 2014 | 11 |
0.5%
|
|
| 9998 | DK | 2 |
0.1%
|
| Sysmiss | 8714 |