| Value | Category | Cases | |
|---|---|---|---|
| 2 | 2 |
1%
|
|
| 2000 | 1 |
0.5%
|
|
| 2001 | 2 |
1%
|
|
| 2002 | 1 |
0.5%
|
|
| 2007 | 1 |
0.5%
|
|
| 2008 | 2 |
1%
|
|
| 2009 | 4 |
2%
|
|
| 2010 | 28 |
13.7%
|
|
| 2011 | 44 |
21.5%
|
|
| 2012 | 88 |
42.9%
|
|
| 2013 | 28 |
13.7%
|
|
| 2015 | 1 |
0.5%
|
|
| 9997 | DO NOT KNOW | 3 |
1.5%
|
| 9999 | missing | 0 |
0%
|
| Sysmiss | 2291 |