| Value | Category | Cases | |
|---|---|---|---|
| 1977 | 1 |
1.1%
|
|
| 1983 | 1 |
1.1%
|
|
| 1986 | 1 |
1.1%
|
|
| 1987 | 1 |
1.1%
|
|
| 1994 | 1 |
1.1%
|
|
| 1995 | 4 |
4.5%
|
|
| 1996 | 1 |
1.1%
|
|
| 1997 | 1 |
1.1%
|
|
| 1999 | 1 |
1.1%
|
|
| 2001 | 1 |
1.1%
|
|
| 2002 | 1 |
1.1%
|
|
| 2006 | 3 |
3.4%
|
|
| 2007 | 5 |
5.6%
|
|
| 2008 | 3 |
3.4%
|
|
| 2009 | 3 |
3.4%
|
|
| 2010 | 3 |
3.4%
|
|
| 2011 | 1 |
1.1%
|
|
| 2012 | 3 |
3.4%
|
|
| 2013 | 2 |
2.2%
|
|
| 2014 | 3 |
3.4%
|
|
| 2015 | 2 |
2.2%
|
|
| 2016 | 5 |
5.6%
|
|
| 2017 | 6 |
6.7%
|
|
| 2018 | 5 |
5.6%
|
|
| 2019 | 5 |
5.6%
|
|
| 2020 | 1 |
1.1%
|
|
| 2021 | 6 |
6.7%
|
|
| 2022 | 6 |
6.7%
|
|
| 2023 | 3 |
3.4%
|
|
| 2024 | 9 |
10.1%
|
|
| 9998 | Don't know | 1 |
1.1%
|
| Sysmiss | 41923 |