| Value | Category | Cases | |
|---|---|---|---|
| 1950 | 1 | 0 |
0%
|
| 1989 | 1 |
5.9%
|
|
| 1990 | 3 |
17.6%
|
|
| 1995 | 1 |
5.9%
|
|
| 1996 | 1 |
5.9%
|
|
| 2001 | 1 |
5.9%
|
|
| 2005 | 1 |
5.9%
|
|
| 2011 | 1 |
5.9%
|
|
| 2012 | 6 |
35.3%
|
|
| 2013 | 1 |
5.9%
|
|
| 2015 | 2 | 0 |
0%
|
| 9997 | 3 | 0 |
0%
|
| 9999 | 4 | 1 |
5.9%
|
| Sysmiss | 1887 |