| Value | Category | Cases | |
|---|---|---|---|
| -888 | NS | 0 |
0%
|
| 1977 | 1 |
0.7%
|
|
| 1992 | 3 |
2.1%
|
|
| 1995 | 1 |
0.7%
|
|
| 1997 | 1 |
0.7%
|
|
| 1998 | 1 |
0.7%
|
|
| 1999 | 1 |
0.7%
|
|
| 2000 | 5 |
3.5%
|
|
| 2001 | 2 |
1.4%
|
|
| 2002 | 2 |
1.4%
|
|
| 2003 | 2 |
1.4%
|
|
| 2004 | 2 |
1.4%
|
|
| 2005 | 4 |
2.8%
|
|
| 2006 | 1 |
0.7%
|
|
| 2007 | 4 |
2.8%
|
|
| 2008 | 3 |
2.1%
|
|
| 2009 | 2 |
1.4%
|
|
| 2010 | 10 |
7%
|
|
| 2011 | 1 |
0.7%
|
|
| 2012 | 2 |
1.4%
|
|
| 2013 | 2 |
1.4%
|
|
| 2014 | 5 |
3.5%
|
|
| 2015 | 8 |
5.6%
|
|
| 2016 | 2 |
1.4%
|
|
| 2017 | 8 |
5.6%
|
|
| 2018 | 10 |
7%
|
|
| 2019 | 9 |
6.3%
|
|
| 2020 | 51 |
35.7%
|
|
| Sysmiss | 1723 |