| Value | Category | Cases | |
|---|---|---|---|
| 99 | ND | 0 |
0%
|
| 1984 | 1 |
0.6%
|
|
| 1985 | 1 |
0.6%
|
|
| 1988 | 1 |
0.6%
|
|
| 1991 | 1 |
0.6%
|
|
| 1992 | 2 |
1.3%
|
|
| 1994 | 1 |
0.6%
|
|
| 1996 | 1 |
0.6%
|
|
| 1998 | 2 |
1.3%
|
|
| 1999 | 3 |
1.9%
|
|
| 2000 | 3 |
1.9%
|
|
| 2001 | 2 |
1.3%
|
|
| 2002 | 1 |
0.6%
|
|
| 2003 | 2 |
1.3%
|
|
| 2004 | 1 |
0.6%
|
|
| 2005 | 1 |
0.6%
|
|
| 2006 | 2 |
1.3%
|
|
| 2007 | 3 |
1.9%
|
|
| 2008 | 6 |
3.8%
|
|
| 2009 | 2 |
1.3%
|
|
| 2010 | 11 |
6.9%
|
|
| 2011 | 18 |
11.3%
|
|
| 2012 | 34 |
21.3%
|
|
| 2013 | 61 |
38.1%
|
|
| Sysmiss | 1340 |