| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | 610 |
18.9%
|
|
| 0 | 1 |
0%
|
|
| 1981 | 1 |
0%
|
|
| 1984 | 1 |
0%
|
|
| 1986 | 1 |
0%
|
|
| 1987 | 1 |
0%
|
|
| 1988 | 4 |
0.1%
|
|
| 1989 | 1 |
0%
|
|
| 1990 | 2 |
0.1%
|
|
| 1991 | 4 |
0.1%
|
|
| 1992 | 5 |
0.2%
|
|
| 1993 | 3 |
0.1%
|
|
| 1995 | 6 |
0.2%
|
|
| 1996 | 3 |
0.1%
|
|
| 1997 | 6 |
0.2%
|
|
| 1998 | 10 |
0.3%
|
|
| 1999 | 7 |
0.2%
|
|
| 2000 | 23 |
0.7%
|
|
| 2001 | 10 |
0.3%
|
|
| 2002 | 25 |
0.8%
|
|
| 2003 | 22 |
0.7%
|
|
| 2004 | 24 |
0.7%
|
|
| 2005 | 30 |
0.9%
|
|
| 2006 | 56 |
1.7%
|
|
| 2007 | 59 |
1.8%
|
|
| 2008 | 70 |
2.2%
|
|
| 2009 | 55 |
1.7%
|
|
| 2010 | 85 |
2.6%
|
|
| 2011 | 97 |
3%
|
|
| 2012 | 163 |
5.1%
|
|
| 2013 | 150 |
4.7%
|
|
| 2014 | 266 |
8.3%
|
|
| 2015 | 349 |
10.8%
|
|
| 2016 | 534 |
16.6%
|
|
| 2017 | 538 |
16.7%
|