| Valor | Categoría | Casos | |
|---|---|---|---|
| 1971 | 1 |
0.1%
|
|
| 1972 | 1 |
0.1%
|
|
| 1977 | 3 |
0.2%
|
|
| 1978 | 8 |
0.6%
|
|
| 1979 | 11 |
0.8%
|
|
| 1980 | 10 |
0.8%
|
|
| 1981 | 18 |
1.4%
|
|
| 1982 | 17 |
1.3%
|
|
| 1983 | 24 |
1.8%
|
|
| 1984 | 24 |
1.8%
|
|
| 1985 | 44 |
3.3%
|
|
| 1986 | 37 |
2.8%
|
|
| 1987 | 43 |
3.2%
|
|
| 1988 | 39 |
2.9%
|
|
| 1989 | 39 |
2.9%
|
|
| 1990 | 54 |
4.1%
|
|
| 1991 | 48 |
3.6%
|
|
| 1992 | 61 |
4.6%
|
|
| 1993 | 58 |
4.4%
|
|
| 1994 | 60 |
4.5%
|
|
| 1995 | 68 |
5.1%
|
|
| 1996 | 61 |
4.6%
|
|
| 1997 | 60 |
4.5%
|
|
| 1998 | 57 |
4.3%
|
|
| 1999 | 62 |
4.7%
|
|
| 2000 | 78 |
5.9%
|
|
| 2001 | 53 |
4%
|
|
| 2002 | 73 |
5.5%
|
|
| 2003 | 56 |
4.2%
|
|
| 2004 | 48 |
3.6%
|
|
| 2005 | 41 |
3.1%
|
|
| 2006 | 31 |
2.3%
|
|
| 2007 | 24 |
1.8%
|
|
| 2008 | 8 |
0.6%
|
|
| 2009 | 4 |
0.3%
|
|
| 2010 | 2 |
0.2%
|
|
| 9999 | Sin información | 5 |
0.4%
|