| Value | Category | Cases | |
|---|---|---|---|
| 1940 | 1 |
1.1%
|
|
| 1972 | 1 |
1.1%
|
|
| 1981 | 1 |
1.1%
|
|
| 1982 | 1 |
1.1%
|
|
| 1983 | 3 |
3.3%
|
|
| 1988 | 1 |
1.1%
|
|
| 1990 | 1 |
1.1%
|
|
| 1992 | 1 |
1.1%
|
|
| 1993 | 1 |
1.1%
|
|
| 1994 | 1 |
1.1%
|
|
| 1996 | 1 |
1.1%
|
|
| 1998 | 1 |
1.1%
|
|
| 2000 | 3 |
3.3%
|
|
| 2002 | 1 |
1.1%
|
|
| 2006 | 4 |
4.4%
|
|
| 2008 | 1 |
1.1%
|
|
| 2009 | 1 |
1.1%
|
|
| 2010 | 7 |
7.8%
|
|
| 2011 | 14 |
15.6%
|
|
| 2012 | 41 |
45.6%
|
|
| 2013 | 4 |
4.4%
|
|
| Sysmiss | 855 |