| Value | Category | Cases | |
|---|---|---|---|
| 888 | Don't know | 260 |
36.2%
|
| 1966 | 1 |
0.1%
|
|
| 1980 | 1 |
0.1%
|
|
| 1986 | 1 |
0.1%
|
|
| 1990 | 2 |
0.3%
|
|
| 1991 | 2 |
0.3%
|
|
| 1994 | 1 |
0.1%
|
|
| 1995 | 1 |
0.1%
|
|
| 1998 | 1 |
0.1%
|
|
| 1999 | 2 |
0.3%
|
|
| 2000 | 7 |
1%
|
|
| 2001 | 2 |
0.3%
|
|
| 2002 | 2 |
0.3%
|
|
| 2003 | 3 |
0.4%
|
|
| 2004 | 3 |
0.4%
|
|
| 2005 | 6 |
0.8%
|
|
| 2006 | 2 |
0.3%
|
|
| 2007 | 3 |
0.4%
|
|
| 2008 | 5 |
0.7%
|
|
| 2009 | 6 |
0.8%
|
|
| 2010 | 16 |
2.2%
|
|
| 2011 | 2 |
0.3%
|
|
| 2012 | 7 |
1%
|
|
| 2013 | 23 |
3.2%
|
|
| 2014 | 28 |
3.9%
|
|
| 2015 | 54 |
7.5%
|
|
| 2016 | 57 |
7.9%
|
|
| 2017 | 120 |
16.7%
|
|
| 2018 | 100 |
13.9%
|
|
| 2019 | 1 |
0.1%
|
|
| 10001 | .A | 1 | |
| Sysmiss | 1219 |