| Value | Category | Cases | |
|---|---|---|---|
| 2003 | 1 |
1.4%
|
|
| 2006 | 1 |
1.4%
|
|
| 2007 | 1 |
1.4%
|
|
| 2009 | 1 |
1.4%
|
|
| 2010 | 3 |
4.1%
|
|
| 2012 | 2 |
2.7%
|
|
| 2014 | 7 |
9.5%
|
|
| 2015 | 7 |
9.5%
|
|
| 2016 | 7 |
9.5%
|
|
| 2017 | 5 |
6.8%
|
|
| 2018 | 9 |
12.2%
|
|
| 2019 | 16 |
21.6%
|
|
| 2020 | 12 |
16.2%
|
|
| 2021 | 1 |
1.4%
|
|
| Dont Know | 1 |
1.4%
|