| Value | Category | Cases | |
|---|---|---|---|
| 1986 | 1 | 
                                    
                                    0%
                                 | |
| 1987 | 1 | 
                                    
                                    0%
                                 | |
| 1988 | 3 | 
                                    
                                    0%
                                 | |
| 1989 | 5 | 
                                    
                                    0.1%
                                 | |
| 1990 | 9 | 
                                    
                                    0.1%
                                 | |
| 1991 | 21 | 
                                    
                                    0.3%
                                 | |
| 1992 | 17 | 
                                    
                                    0.2%
                                 | |
| 1993 | 28 | 
                                    
                                    0.3%
                                 | |
| 1994 | 48 | 
                                    
                                    0.6%
                                 | |
| 1995 | 55 | 
                                    
                                    0.7%
                                 | |
| 1996 | 58 | 
                                    
                                    0.7%
                                 | |
| 1997 | 66 | 
                                    
                                    0.8%
                                 | |
| 1998 | 62 | 
                                    
                                    0.8%
                                 | |
| 1999 | 86 | 
                                    
                                    1%
                                 | |
| 2000 | 112 | 
                                    
                                    1.4%
                                 | |
| 2001 | 102 | 
                                    
                                    1.2%
                                 | |
| 2002 | 109 | 
                                    
                                    1.3%
                                 | |
| 2003 | 102 | 
                                    
                                    1.2%
                                 | |
| 2004 | 129 | 
                                    
                                    1.6%
                                 | |
| 2005 | 128 | 
                                    
                                    1.6%
                                 | |
| 2006 | 112 | 
                                    
                                    1.4%
                                 | |
| 2007 | 132 | 
                                    
                                    1.6%
                                 | |
| 2008 | 155 | 
                                    
                                    1.9%
                                 | |
| 2009 | 177 | 
                                    
                                    2.2%
                                 | |
| 2010 | 186 | 
                                    
                                    2.3%
                                 | |
| 2011 | 230 | 
                                    
                                    2.8%
                                 | |
| 2012 | 285 | 
                                    
                                    3.5%
                                 | |
| 2013 | 503 | 
                                    
                                    6.1%
                                 | |
| 2014 | 561 | 
                                    
                                    6.8%
                                 | |
| 2015 | 666 | 
                                    
                                    8.1%
                                 | |
| 2016 | 649 | 
                                    
                                    7.9%
                                 | |
| 2017 | 657 | 
                                    
                                    8%
                                 | |
| 2018 | 117 | 
                                    
                                    1.4%
                                 | |
| 9998 | NO SABE | 19 | 
                                    
                                    0.2%
                                 | 
| 9999 | NO RESPONDE | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 2625 | 
                                    
                                    31.9%
                                 |