| Value | Category | Cases | |
|---|---|---|---|
| 99 | Don't Know | 0 |
0%
|
| 1989 | 1 |
1.5%
|
|
| 1994 | 1 |
1.5%
|
|
| 2002 | 1 |
1.5%
|
|
| 2005 | 1 |
1.5%
|
|
| 2006 | 1 |
1.5%
|
|
| 2007 | 3 |
4.5%
|
|
| 2008 | 2 |
3%
|
|
| 2009 | 11 |
16.7%
|
|
| 2010 | 2 |
3%
|
|
| 2011 | 3 |
4.5%
|
|
| 2012 | 2 |
3%
|
|
| 2013 | 8 |
12.1%
|
|
| 2014 | 3 |
4.5%
|
|
| 2015 | 6 |
9.1%
|
|
| 2016 | 4 |
6.1%
|
|
| 2017 | 6 |
9.1%
|
|
| 2018 | 3 |
4.5%
|
|
| 2019 | 8 |
12.1%
|
|
| Sysmiss | 6285 |