Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
1.3%
|
1990 | 1 |
0.7%
|
|
1992 | 1 |
0.7%
|
|
1995 | 1 |
0.7%
|
|
1998 | 2 |
1.3%
|
|
2002 | 1 |
0.7%
|
|
2006 | 2 |
1.3%
|
|
2007 | 2 |
1.3%
|
|
2009 | 1 |
0.7%
|
|
2010 | 2 |
1.3%
|
|
2011 | 1 |
0.7%
|
|
2013 | 2 |
1.3%
|
|
2015 | 1 |
0.7%
|
|
2016 | 4 |
2.6%
|
|
2017 | 3 |
2%
|
|
NA | 125 |
82.8%
|