Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 50 |
2.5%
|
1984 | 1 |
0%
|
|
1987 | 2 |
0.1%
|
|
1990 | 2 |
0.1%
|
|
1993 | 2 |
0.1%
|
|
1994 | 1 |
0%
|
|
1995 | 6 |
0.3%
|
|
1997 | 3 |
0.1%
|
|
1998 | 6 |
0.3%
|
|
1999 | 1 |
0%
|
|
2000 | 29 |
1.4%
|
|
2001 | 11 |
0.5%
|
|
2002 | 16 |
0.8%
|
|
2003 | 18 |
0.9%
|
|
2004 | 50 |
2.5%
|
|
2005 | 205 |
10.2%
|
|
2006 | 192 |
9.5%
|
|
2007 | 32 |
1.6%
|
|
2008 | 80 |
4%
|
|
2009 | 258 |
12.8%
|
|
2010 | 351 |
17.4%
|
|
2011 | 12 |
0.6%
|
|
2012 | 15 |
0.7%
|
|
2013 | 16 |
0.8%
|
|
2014 | 49 |
2.4%
|
|
2015 | 85 |
4.2%
|
|
2016 | 274 |
13.6%
|
|
2017 | 244 |
12.1%
|
|
2018 | 7 |
0.3%
|
|
Sysmiss | 617 |