Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 16 |
9.7%
|
2004 | 1 |
0.6%
|
|
2007 | 1 |
0.6%
|
|
2008 | 1 |
0.6%
|
|
2010 | 4 |
2.4%
|
|
2011 | 1 |
0.6%
|
|
2012 | 4 |
2.4%
|
|
2013 | 3 |
1.8%
|
|
2014 | 12 |
7.3%
|
|
2015 | 18 |
10.9%
|
|
2016 | 22 |
13.3%
|
|
2017 | 25 |
15.2%
|
|
2018 | 57 |
34.5%
|
|
Sysmiss | 264 |