| Value | Category | Cases | |
|---|---|---|---|
| -3 | 56 |
6.8%
|
|
| 2000 | 3 |
0.4%
|
|
| 2001 | 7 |
0.9%
|
|
| 2002 | 6 |
0.7%
|
|
| 2003 | 13 |
1.6%
|
|
| 2004 | 25 |
3%
|
|
| 2005 | 35 |
4.3%
|
|
| 2006 | 41 |
5%
|
|
| 2007 | 49 |
6%
|
|
| 2008 | 49 |
6%
|
|
| 2009 | 45 |
5.5%
|
|
| 2010 | 72 |
8.7%
|
|
| 2011 | 81 |
9.8%
|
|
| 2012 | 86 |
10.4%
|
|
| 2013 | 83 |
10.1%
|
|
| 2014 | 89 |
10.8%
|
|
| 2015 | 19 |
2.3%
|
|
| 3333 | Missing | 4 |
0.5%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 60 |
7.3%
|
| Sysmiss | 13095 |