| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -8 | Refused | 0 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Less than 1 year | 0 |
0%
|
| 1958 | 1 |
0.1%
|
|
| 1959 | 1 |
0.1%
|
|
| 1962 | 1 |
0.1%
|
|
| 1963 | 1 |
0.1%
|
|
| 1967 | 2 |
0.1%
|
|
| 1970 | 2 |
0.1%
|
|
| 1971 | 1 |
0.1%
|
|
| 1972 | 3 |
0.2%
|
|
| 1973 | 3 |
0.2%
|
|
| 1974 | 2 |
0.1%
|
|
| 1976 | 2 |
0.1%
|
|
| 1977 | 2 |
0.1%
|
|
| 1978 | 3 |
0.2%
|
|
| 1980 | 3 |
0.2%
|
|
| 1981 | 2 |
0.1%
|
|
| 1982 | 4 |
0.3%
|
|
| 1983 | 4 |
0.3%
|
|
| 1984 | 3 |
0.2%
|
|
| 1985 | 2 |
0.1%
|
|
| 1986 | 4 |
0.3%
|
|
| 1987 | 2 |
0.1%
|
|
| 1988 | 5 |
0.4%
|
|
| 1989 | 7 |
0.5%
|
|
| 1990 | 1 |
0.1%
|
|
| 1991 | 5 |
0.4%
|
|
| 1992 | 7 |
0.5%
|
|
| 1993 | 5 |
0.4%
|
|
| 1994 | 12 |
0.9%
|
|
| 1995 | 2 |
0.1%
|
|
| 1996 | 10 |
0.7%
|
|
| 1997 | 8 |
0.6%
|
|
| 1998 | 17 |
1.2%
|
|
| 1999 | 9 |
0.7%
|
|
| 2000 | 11 |
0.8%
|
|
| 2001 | 10 |
0.7%
|
|
| 2002 | 21 |
1.5%
|
|
| 2003 | 14 |
1%
|
|
| 2004 | 15 |
1.1%
|
|
| 2005 | 15 |
1.1%
|
|
| 2006 | 23 |
1.7%
|
|
| 2007 | 32 |
2.3%
|
|
| 2008 | 35 |
2.5%
|
|
| 2009 | 36 |
2.6%
|
|
| 2010 | 45 |
3.3%
|
|
| 2011 | 44 |
3.2%
|
|
| 2012 | 80 |
5.8%
|
|
| 2013 | 98 |
7.1%
|
|
| 2014 | 122 |
8.8%
|
|
| 2015 | 1 |
0.1%
|
|
| 3333 | Missing | 63 |
4.6%
|
| 5555 | Not applicable | 4 |
0.3%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 575 |
41.7%
|
| Sysmiss | 217 |