| Value | Category | Cases | |
|---|---|---|---|
| 1971 | 1 |
2.2%
|
|
| 1976 | 1 |
2.2%
|
|
| 1979 | 1 |
2.2%
|
|
| 1980 | 1 |
2.2%
|
|
| 1981 | 1 |
2.2%
|
|
| 1983 | 1 |
2.2%
|
|
| 1987 | 1 |
2.2%
|
|
| 1996 | 1 |
2.2%
|
|
| 1998 | 1 |
2.2%
|
|
| 1999 | 4 |
8.9%
|
|
| 2000 | 3 |
6.7%
|
|
| 2001 | 1 |
2.2%
|
|
| 2003 | 1 |
2.2%
|
|
| 2004 | 1 |
2.2%
|
|
| 2006 | 2 |
4.4%
|
|
| 2007 | 1 |
2.2%
|
|
| 2008 | 1 |
2.2%
|
|
| 2010 | 2 |
4.4%
|
|
| 2014 | 2 |
4.4%
|
|
| 2015 | 2 |
4.4%
|
|
| 2016 | 2 |
4.4%
|
|
| 2017 | 2 |
4.4%
|
|
| 2018 | 2 |
4.4%
|
|
| 2021 | 1 |
2.2%
|
|
| 2022 | 4 |
8.9%
|
|
| 2023 | 2 |
4.4%
|
|
| 2024 | 1 |
2.2%
|
|
| 2025 | 2 |
4.4%
|
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 41967 |