| Value | Category | Cases | |
|---|---|---|---|
| 1969 | 1 |
0%
|
|
| 1975 | 1 |
0%
|
|
| 1982 | 1 |
0%
|
|
| 1983 | 2 |
0%
|
|
| 1992 | 2 |
0%
|
|
| 1995 | 1 |
0%
|
|
| 1996 | 1 |
0%
|
|
| 1997 | 1 |
0%
|
|
| 1999 | 1 |
0%
|
|
| 2000 | 9 |
0.2%
|
|
| 2001 | 7 |
0.1%
|
|
| 2002 | 2 |
0%
|
|
| 2003 | 7 |
0.1%
|
|
| 2004 | 2 |
0%
|
|
| 2005 | 3 |
0.1%
|
|
| 2006 | 2 |
0%
|
|
| 2007 | 7 |
0.1%
|
|
| 2008 | 4 |
0.1%
|
|
| 2009 | 1 |
0%
|
|
| 2010 | 3 |
0.1%
|
|
| 2011 | 4 |
0.1%
|
|
| 2012 | 13 |
0.3%
|
|
| 2013 | 10 |
0.2%
|
|
| 2014 | 16 |
0.3%
|
|
| 2015 | 24 |
0.5%
|
|
| 2016 | 17 |
0.3%
|
|
| 2017 | 46 |
0.9%
|
|
| 2018 | 84 |
1.6%
|
|
| 2019 | 159 |
3.1%
|
|
| 2020 | 329 |
6.5%
|
|
| 2021 | 442 |
8.7%
|
|
| 2022 | 1283 |
25.2%
|
|
| 2023 | 229 |
4.5%
|
|
| 8888 | 8888. NEVER EXPERIENCED | 1061 |
20.8%
|
| 9999 | 9999. DON'T KNOW | 1319 |
25.9%
|
| Sysmiss | 2 |