| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 1 |
0%
|
|
| 1999 | 1 |
0%
|
|
| 2000 | 1 |
0%
|
|
| 2001 | 1 |
0%
|
|
| 2007 | 1 |
0%
|
|
| 2009 | 1 |
0%
|
|
| 2010 | 5 |
0%
|
|
| 2011 | 2 |
0%
|
|
| 2012 | 1 |
0%
|
|
| 2013 | 3 |
0%
|
|
| 2014 | 7 |
0%
|
|
| 2015 | 20 |
0%
|
|
| 2016 | 23 |
0.1%
|
|
| 2017 | 27 |
0.1%
|
|
| 2018 | 28 |
0.1%
|
|
| 2019 | 11 |
0%
|
|
| 2020 | 18 |
0%
|
|
| 2021 | 1 |
0%
|
|
| z | Not applicable | 37321 |
92.8%
|
| d | Inconsistency set to missing | 2761 |
6.9%
|
| a | Don't know | 1 |
0%
|