| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 2 |
3.7%
|
|
| 2003 | 2 |
3.7%
|
|
| 2004 | 3 |
5.6%
|
|
| 2009 | 1 |
1.9%
|
|
| 2010 | 4 |
7.4%
|
|
| 2011 | 5 |
9.3%
|
|
| 2012 | 4 |
7.4%
|
|
| 2013 | 7 |
13%
|
|
| 2014 | 6 |
11.1%
|
|
| 2015 | 2 |
3.7%
|
|
| 2016 | 5 |
9.3%
|
|
| 2017 | 7 |
13%
|
|
| 2018 | 6 |
11.1%
|