| Value | Category | Cases | |
|---|---|---|---|
| 99 | Don't remember | 4 |
0.1%
|
| 1910 | 3 |
0.1%
|
|
| 1933 | 1 |
0%
|
|
| 1937 | 1 |
0%
|
|
| 1939 | 1 |
0%
|
|
| 1950 | 1 |
0%
|
|
| 1955 | 1 |
0%
|
|
| 1960 | 3 |
0.1%
|
|
| 1963 | 1 |
0%
|
|
| 1965 | 2 |
0.1%
|
|
| 1967 | 2 |
0.1%
|
|
| 1968 | 1 |
0%
|
|
| 1969 | 1 |
0%
|
|
| 1970 | 6 |
0.2%
|
|
| 1971 | 2 |
0.1%
|
|
| 1972 | 2 |
0.1%
|
|
| 1973 | 2 |
0.1%
|
|
| 1974 | 2 |
0.1%
|
|
| 1975 | 11 |
0.3%
|
|
| 1977 | 12 |
0.3%
|
|
| 1978 | 9 |
0.2%
|
|
| 1979 | 4 |
0.1%
|
|
| 1980 | 30 |
0.8%
|
|
| 1981 | 7 |
0.2%
|
|
| 1982 | 23 |
0.6%
|
|
| 1983 | 14 |
0.4%
|
|
| 1984 | 14 |
0.4%
|
|
| 1985 | 37 |
1%
|
|
| 1986 | 15 |
0.4%
|
|
| 1987 | 45 |
1.2%
|
|
| 1988 | 45 |
1.2%
|
|
| 1989 | 29 |
0.8%
|
|
| 1990 | 119 |
3.2%
|
|
| 1991 | 48 |
1.3%
|
|
| 1992 | 121 |
3.2%
|
|
| 1993 | 65 |
1.7%
|
|
| 1994 | 93 |
2.5%
|
|
| 1995 | 136 |
3.6%
|
|
| 1996 | 60 |
1.6%
|
|
| 1997 | 92 |
2.4%
|
|
| 1998 | 151 |
4%
|
|
| 1999 | 123 |
3.3%
|
|
| 2000 | 313 |
8.3%
|
|
| 2001 | 87 |
2.3%
|
|
| 2002 | 193 |
5.1%
|
|
| 2003 | 108 |
2.9%
|
|
| 2004 | 104 |
2.8%
|
|
| 2005 | 218 |
5.8%
|
|
| 2006 | 164 |
4.4%
|
|
| 2007 | 195 |
5.2%
|
|
| 2008 | 237 |
6.3%
|
|
| 2009 | 224 |
5.9%
|
|
| 2010 | 267 |
7.1%
|
|
| 2011 | 203 |
5.4%
|
|
| 2012 | 117 |
3.1%
|
|
| Sysmiss | 116309 |