Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
7.3%
|
1993 | 1 |
1.2%
|
|
1996 | 1 |
1.2%
|
|
1998 | 1 |
1.2%
|
|
2002 | 1 |
1.2%
|
|
2003 | 1 |
1.2%
|
|
2004 | 1 |
1.2%
|
|
2005 | 3 |
3.7%
|
|
2008 | 1 |
1.2%
|
|
2009 | 1 |
1.2%
|
|
2010 | 2 |
2.4%
|
|
2011 | 2 |
2.4%
|
|
2012 | 2 |
2.4%
|
|
2013 | 3 |
3.7%
|
|
2014 | 6 |
7.3%
|
|
2015 | 9 |
11%
|
|
2016 | 18 |
22%
|
|
2017 | 14 |
17.1%
|
|
2018 | 9 |
11%
|
|
Sysmiss | 151 |