| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1989 | 1 | 811 |
0%
|
|
| 1990 | 1 | 1605 |
0.1%
|
|
| 1993 | 1 | 1485 |
0.1%
|
|
| 1996 | 2 | 4121 |
0.2%
|
|
| 1997 | 1 | 1546 |
0.1%
|
|
| 1998 | 2 | 1826 |
0.1%
|
|
| 1999 | 1 | 2234 |
0.1%
|
|
| 2000 | 2 | 3928 |
0.2%
|
|
| 2002 | 2 | 2883 |
0.1%
|
|
| 2003 | 6 | 10502 |
0.4%
|
|
| 2004 | 4 | 6685 |
0.3%
|
|
| 2005 | 11 | 14501 |
0.6%
|
|
| 2006 | 12 | 20412 |
0.8%
|
|
| 2007 | 10 | 10734 |
0.4%
|
|
| 2008 | 17 | 23351 |
1%
|
|
| 2009 | 14 | 21795 |
0.9%
|
|
| 2010 | 61 | 101562 |
4.2%
|
|
| 2011 | 485 | 759337 |
31.2%
|
|
| 2012 | 647 | 1065070 |
43.8%
|
|
| 9998 | don't know | 83 | 134417 |
5.5%
|
| 9999 | don't search | 172 | 245223 |
10.1%
|
| Sysmiss | 47651 | 77627356 |