| Value | Category | Cases | |
|---|---|---|---|
| 1940 | 1 |
0%
|
|
| 1952 | 3 |
0.1%
|
|
| 1953 | 3 |
0.1%
|
|
| 1954 | 2 |
0%
|
|
| 1955 | 1 |
0%
|
|
| 1956 | 1 |
0%
|
|
| 1957 | 4 |
0.1%
|
|
| 1958 | 1 |
0%
|
|
| 1960 | 6 |
0.1%
|
|
| 1961 | 5 |
0.1%
|
|
| 1962 | 3 |
0.1%
|
|
| 1963 | 4 |
0.1%
|
|
| 1964 | 7 |
0.2%
|
|
| 1965 | 10 |
0.2%
|
|
| 1966 | 5 |
0.1%
|
|
| 1967 | 10 |
0.2%
|
|
| 1968 | 3 |
0.1%
|
|
| 1969 | 7 |
0.2%
|
|
| 1970 | 9 |
0.2%
|
|
| 1971 | 7 |
0.2%
|
|
| 1972 | 9 |
0.2%
|
|
| 1973 | 13 |
0.3%
|
|
| 1974 | 15 |
0.3%
|
|
| 1975 | 8 |
0.2%
|
|
| 1976 | 8 |
0.2%
|
|
| 1977 | 12 |
0.3%
|
|
| 1978 | 11 |
0.2%
|
|
| 1979 | 12 |
0.3%
|
|
| 1980 | 24 |
0.5%
|
|
| 1981 | 9 |
0.2%
|
|
| 1982 | 13 |
0.3%
|
|
| 1983 | 24 |
0.5%
|
|
| 1984 | 30 |
0.7%
|
|
| 1985 | 20 |
0.4%
|
|
| 1986 | 19 |
0.4%
|
|
| 1987 | 25 |
0.6%
|
|
| 1988 | 19 |
0.4%
|
|
| 1989 | 29 |
0.6%
|
|
| 1990 | 34 |
0.8%
|
|
| 1991 | 29 |
0.6%
|
|
| 1992 | 25 |
0.6%
|
|
| 1993 | 39 |
0.9%
|
|
| 1994 | 49 |
1.1%
|
|
| 1995 | 40 |
0.9%
|
|
| 1996 | 60 |
1.3%
|
|
| 1997 | 61 |
1.3%
|
|
| 1998 | 65 |
1.4%
|
|
| 1999 | 66 |
1.5%
|
|
| 2000 | 71 |
1.6%
|
|
| 2001 | 79 |
1.7%
|
|
| 2002 | 79 |
1.7%
|
|
| 2003 | 96 |
2.1%
|
|
| 2004 | 103 |
2.3%
|
|
| 2005 | 131 |
2.9%
|
|
| 2006 | 143 |
3.2%
|
|
| 2007 | 155 |
3.4%
|
|
| 2008 | 187 |
4.1%
|
|
| 2009 | 219 |
4.8%
|
|
| 2010 | 231 |
5.1%
|
|
| 2011 | 188 |
4.2%
|
|
| 2012 | 226 |
5%
|
|
| 2013 | 274 |
6.1%
|
|
| 2014 | 308 |
6.8%
|
|
| 2015 | 339 |
7.5%
|
|
| 2016 | 450 |
10%
|
|
| 2017 | 122 |
2.7%
|
|
| 3333 | Missing | 32 |
0.7%
|
| 5555 | Not Applicable | 2 |
0%
|
| 8888 | Refused | 3 |
0.1%
|
| 9999 | Don't know | 223 |
4.9%
|
| Sysmiss | 25589 |