| Value | Category | Cases | |
|---|---|---|---|
| 1977 | 3 |
4.8%
|
|
| 1979 | 1 |
1.6%
|
|
| 1980 | 1 |
1.6%
|
|
| 1988 | 1 |
1.6%
|
|
| 1991 | 3 |
4.8%
|
|
| 1992 | 1 |
1.6%
|
|
| 1995 | 1 |
1.6%
|
|
| 1997 | 1 |
1.6%
|
|
| 1998 | 1 |
1.6%
|
|
| 1999 | 1 |
1.6%
|
|
| 2000 | 3 |
4.8%
|
|
| 2001 | 1 |
1.6%
|
|
| 2002 | 1 |
1.6%
|
|
| 2003 | 1 |
1.6%
|
|
| 2004 | 2 |
3.2%
|
|
| 2005 | 2 |
3.2%
|
|
| 2006 | 1 |
1.6%
|
|
| 2007 | 1 |
1.6%
|
|
| 2008 | 2 |
3.2%
|
|
| 2010 | 3 |
4.8%
|
|
| 2011 | 1 |
1.6%
|
|
| 2012 | 2 |
3.2%
|
|
| 2014 | 1 |
1.6%
|
|
| 2015 | 3 |
4.8%
|
|
| 2016 | 1 |
1.6%
|
|
| 2017 | 1 |
1.6%
|
|
| 2018 | 2 |
3.2%
|
|
| 2019 | 2 |
3.2%
|
|
| 2020 | 4 |
6.3%
|
|
| 2021 | 2 |
3.2%
|
|
| 2022 | 3 |
4.8%
|
|
| 2023 | 2 |
3.2%
|
|
| 2024 | 4 |
6.3%
|
|
| 2025 | 4 |
6.3%
|
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 41949 |