| Value | Category | Cases | |
|---|---|---|---|
| 99 | Missing | 21 |
0.3%
|
| 1972 | 1 |
0%
|
|
| 1973 | 1 |
0%
|
|
| 1978 | 1 |
0%
|
|
| 1980 | 1 |
0%
|
|
| 1981 | 1 |
0%
|
|
| 1983 | 2 |
0%
|
|
| 1984 | 1 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1986 | 2 |
0%
|
|
| 1988 | 3 |
0%
|
|
| 1989 | 2 |
0%
|
|
| 1990 | 9 |
0.1%
|
|
| 1991 | 5 |
0.1%
|
|
| 1992 | 10 |
0.2%
|
|
| 1993 | 7 |
0.1%
|
|
| 1994 | 6 |
0.1%
|
|
| 1995 | 6 |
0.1%
|
|
| 1996 | 11 |
0.2%
|
|
| 1997 | 13 |
0.2%
|
|
| 1998 | 35 |
0.5%
|
|
| 1999 | 27 |
0.4%
|
|
| 2000 | 186 |
2.8%
|
|
| 2001 | 88 |
1.3%
|
|
| 2002 | 94 |
1.4%
|
|
| 2003 | 121 |
1.8%
|
|
| 2004 | 162 |
2.5%
|
|
| 2005 | 220 |
3.4%
|
|
| 2006 | 218 |
3.3%
|
|
| 2007 | 273 |
4.2%
|
|
| 2008 | 543 |
8.3%
|
|
| 2009 | 707 |
10.8%
|
|
| 2010 | 897 |
13.7%
|
|
| 2011 | 1032 |
15.8%
|
|
| 2012 | 1546 |
23.6%
|
|
| 2013 | 294 |
4.5%
|
|
| Sysmiss | 55409 |