Value | Category | Cases | |
---|---|---|---|
-1 | True missing | 5 |
0.1%
|
98 | Don't know | 17 |
0.3%
|
1998 | 17 |
0.3%
|
|
1999 | 26 |
0.5%
|
|
2000 | 94 |
1.7%
|
|
2001 | 76 |
1.4%
|
|
2002 | 132 |
2.4%
|
|
2003 | 312 |
5.7%
|
|
2004 | 533 |
9.7%
|
|
2005 | 786 |
14.3%
|
|
2006 | 1036 |
18.9%
|
|
2007 | 1021 |
18.6%
|
|
2008 | 849 |
15.5%
|
|
2009 | 476 |
8.7%
|
|
2010 | 88 |
1.6%
|
|
2011 | 12 |
0.2%
|
|
2012 | 1 |
0%
|