| Value | Category | Cases | |
|---|---|---|---|
| -7 | Not applicable | 0 |
0%
|
| 888 | Don't know | 18 |
7.5%
|
| 999 | Refused | 0 |
0%
|
| 1948 | 1 |
0.4%
|
|
| 1957 | 1 |
0.4%
|
|
| 1960 | 2 |
0.8%
|
|
| 1964 | 1 |
0.4%
|
|
| 1969 | 1 |
0.4%
|
|
| 1971 | 1 |
0.4%
|
|
| 1972 | 1 |
0.4%
|
|
| 1973 | 2 |
0.8%
|
|
| 1975 | 2 |
0.8%
|
|
| 1978 | 1 |
0.4%
|
|
| 1980 | 5 |
2.1%
|
|
| 1981 | 1 |
0.4%
|
|
| 1982 | 1 |
0.4%
|
|
| 1983 | 1 |
0.4%
|
|
| 1986 | 3 |
1.3%
|
|
| 1987 | 6 |
2.5%
|
|
| 1988 | 1 |
0.4%
|
|
| 1989 | 1 |
0.4%
|
|
| 1990 | 5 |
2.1%
|
|
| 1991 | 4 |
1.7%
|
|
| 1992 | 1 |
0.4%
|
|
| 1993 | 1 |
0.4%
|
|
| 1994 | 3 |
1.3%
|
|
| 1996 | 1 |
0.4%
|
|
| 1997 | 2 |
0.8%
|
|
| 1998 | 6 |
2.5%
|
|
| 1999 | 4 |
1.7%
|
|
| 2000 | 6 |
2.5%
|
|
| 2001 | 1 |
0.4%
|
|
| 2002 | 7 |
2.9%
|
|
| 2003 | 3 |
1.3%
|
|
| 2004 | 2 |
0.8%
|
|
| 2005 | 1 |
0.4%
|
|
| 2006 | 2 |
0.8%
|
|
| 2007 | 6 |
2.5%
|
|
| 2008 | 5 |
2.1%
|
|
| 2009 | 3 |
1.3%
|
|
| 2010 | 4 |
1.7%
|
|
| 2011 | 5 |
2.1%
|
|
| 2012 | 3 |
1.3%
|
|
| 2013 | 5 |
2.1%
|
|
| 2014 | 5 |
2.1%
|
|
| 2015 | 9 |
3.8%
|
|
| 2016 | 7 |
2.9%
|
|
| 2017 | 13 |
5.4%
|
|
| 2018 | 7 |
2.9%
|
|
| 2019 | 9 |
3.8%
|
|
| 2020 | 15 |
6.3%
|
|
| 2021 | 7 |
2.9%
|
|
| 2022 | 20 |
8.4%
|
|
| 2023 | 17 |
7.1%
|
|
| Sysmiss | 1368 |