| Value | Category | Cases | |
|---|---|---|---|
| 1983 | 2 |
0.1%
|
|
| 1987 | 1 |
0%
|
|
| 1988 | 2 |
0.1%
|
|
| 1998 | 3 |
0.1%
|
|
| 1999 | 1 |
0%
|
|
| 2000 | 5 |
0.2%
|
|
| 2001 | 1 |
0%
|
|
| 2003 | 2 |
0.1%
|
|
| 2004 | 1 |
0%
|
|
| 2006 | 1 |
0%
|
|
| 2007 | 2 |
0.1%
|
|
| 2009 | 2 |
0.1%
|
|
| 2010 | 1 |
0%
|
|
| 2011 | 2 |
0.1%
|
|
| 2012 | 2 |
0.1%
|
|
| 2013 | 3 |
0.1%
|
|
| 2014 | 3 |
0.1%
|
|
| 2015 | 1 |
0%
|
|
| 2016 | 2 |
0.1%
|
|
| 2017 | 7 |
0.3%
|
|
| 2018 | 10 |
0.5%
|
|
| 2019 | 26 |
1.3%
|
|
| 2020 | 59 |
2.9%
|
|
| 2021 | 134 |
6.6%
|
|
| 2022 | 302 |
14.9%
|
|
| 2023 | 501 |
24.7%
|
|
| 2024 | 21 |
1%
|
|
| 8888 | 8888. NEVER EXPERIENCED | 761 |
37.5%
|
| 9999 | 9999. DON'T KNOW | 174 |
8.6%
|