| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 19 |
3.7%
|
| 1987 | 1 |
0.2%
|
|
| 1992 | 1 |
0.2%
|
|
| 1995 | 2 |
0.4%
|
|
| 1996 | 1 |
0.2%
|
|
| 1998 | 1 |
0.2%
|
|
| 2000 | 7 |
1.4%
|
|
| 2001 | 1 |
0.2%
|
|
| 2002 | 1 |
0.2%
|
|
| 2003 | 2 |
0.4%
|
|
| 2004 | 1 |
0.2%
|
|
| 2005 | 2 |
0.4%
|
|
| 2006 | 1 |
0.2%
|
|
| 2007 | 3 |
0.6%
|
|
| 2008 | 4 |
0.8%
|
|
| 2009 | 3 |
0.6%
|
|
| 2010 | 10 |
2%
|
|
| 2011 | 10 |
2%
|
|
| 2012 | 22 |
4.3%
|
|
| 2013 | 36 |
7.1%
|
|
| 2014 | 60 |
11.8%
|
|
| 2015 | 74 |
14.6%
|
|
| 2016 | 155 |
30.5%
|
|
| 2017 | 91 |
17.9%
|
|
| Sysmiss | 40592 |