| Value | Category | Cases | |
|---|---|---|---|
| 99 | Don't Know | 0 |
0%
|
| 1952 | 1 |
0.6%
|
|
| 1980 | 1 |
0.6%
|
|
| 1984 | 1 |
0.6%
|
|
| 1992 | 1 |
0.6%
|
|
| 1993 | 2 |
1.2%
|
|
| 1995 | 1 |
0.6%
|
|
| 1997 | 1 |
0.6%
|
|
| 1998 | 2 |
1.2%
|
|
| 2000 | 2 |
1.2%
|
|
| 2001 | 2 |
1.2%
|
|
| 2002 | 7 |
4.3%
|
|
| 2003 | 1 |
0.6%
|
|
| 2004 | 6 |
3.7%
|
|
| 2005 | 5 |
3.1%
|
|
| 2006 | 3 |
1.9%
|
|
| 2007 | 2 |
1.2%
|
|
| 2008 | 3 |
1.9%
|
|
| 2009 | 2 |
1.2%
|
|
| 2010 | 6 |
3.7%
|
|
| 2011 | 3 |
1.9%
|
|
| 2012 | 3 |
1.9%
|
|
| 2013 | 5 |
3.1%
|
|
| 2014 | 6 |
3.7%
|
|
| 2015 | 10 |
6.2%
|
|
| 2016 | 15 |
9.3%
|
|
| 2017 | 18 |
11.1%
|
|
| 2018 | 20 |
12.3%
|
|
| 2019 | 33 |
20.4%
|
|
| Sysmiss | 6189 |