| Value | Category | Cases | |
|---|---|---|---|
| 1955 | 1 |
0.1%
|
|
| 1956 | 1 |
0.1%
|
|
| 1958 | 1 |
0.1%
|
|
| 1960 | 1 |
0.1%
|
|
| 1962 | 2 |
0.2%
|
|
| 1963 | 1 |
0.1%
|
|
| 1965 | 2 |
0.2%
|
|
| 1966 | 2 |
0.2%
|
|
| 1967 | 2 |
0.2%
|
|
| 1969 | 2 |
0.2%
|
|
| 1970 | 4 |
0.5%
|
|
| 1971 | 1 |
0.1%
|
|
| 1972 | 4 |
0.5%
|
|
| 1973 | 1 |
0.1%
|
|
| 1974 | 2 |
0.2%
|
|
| 1975 | 1 |
0.1%
|
|
| 1976 | 2 |
0.2%
|
|
| 1977 | 5 |
0.6%
|
|
| 1978 | 4 |
0.5%
|
|
| 1979 | 6 |
0.7%
|
|
| 1980 | 10 |
1.2%
|
|
| 1981 | 4 |
0.5%
|
|
| 1982 | 1 |
0.1%
|
|
| 1983 | 5 |
0.6%
|
|
| 1984 | 6 |
0.7%
|
|
| 1985 | 4 |
0.5%
|
|
| 1986 | 8 |
1%
|
|
| 1987 | 5 |
0.6%
|
|
| 1988 | 4 |
0.5%
|
|
| 1989 | 7 |
0.8%
|
|
| 1990 | 11 |
1.3%
|
|
| 1991 | 8 |
1%
|
|
| 1992 | 10 |
1.2%
|
|
| 1993 | 15 |
1.8%
|
|
| 1994 | 11 |
1.3%
|
|
| 1995 | 7 |
0.8%
|
|
| 1996 | 12 |
1.4%
|
|
| 1997 | 14 |
1.7%
|
|
| 1998 | 13 |
1.5%
|
|
| 1999 | 16 |
1.9%
|
|
| 2000 | 22 |
2.6%
|
|
| 2001 | 17 |
2%
|
|
| 2002 | 21 |
2.5%
|
|
| 2003 | 20 |
2.4%
|
|
| 2004 | 16 |
1.9%
|
|
| 2005 | 23 |
2.7%
|
|
| 2006 | 32 |
3.8%
|
|
| 2007 | 37 |
4.4%
|
|
| 2008 | 48 |
5.7%
|
|
| 2009 | 42 |
5%
|
|
| 2010 | 45 |
5.4%
|
|
| 2011 | 32 |
3.8%
|
|
| 2012 | 54 |
6.4%
|
|
| 2013 | 46 |
5.5%
|
|
| 2014 | 43 |
5.1%
|
|
| 2015 | 8 |
1%
|
|
| 3333 | Missing | 4 |
0.5%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 1 |
0.1%
|
| 9999 | Don't Know | 112 |
13.3%
|
| Sysmiss | 25980 |