| Valor | Categoría | Casos | |
|---|---|---|---|
| 1972 | 1 |
0.1%
|
|
| 1973 | 1 |
0.1%
|
|
| 1974 | 2 |
0.1%
|
|
| 1975 | 6 |
0.4%
|
|
| 1976 | 7 |
0.5%
|
|
| 1977 | 15 |
1%
|
|
| 1978 | 23 |
1.6%
|
|
| 1979 | 20 |
1.4%
|
|
| 1980 | 31 |
2.1%
|
|
| 1981 | 33 |
2.3%
|
|
| 1982 | 44 |
3%
|
|
| 1983 | 37 |
2.5%
|
|
| 1984 | 48 |
3.3%
|
|
| 1985 | 37 |
2.5%
|
|
| 1986 | 58 |
4%
|
|
| 1987 | 47 |
3.2%
|
|
| 1988 | 67 |
4.6%
|
|
| 1989 | 58 |
4%
|
|
| 1990 | 60 |
4.1%
|
|
| 1991 | 59 |
4%
|
|
| 1992 | 69 |
4.7%
|
|
| 1993 | 61 |
4.2%
|
|
| 1994 | 73 |
5%
|
|
| 1995 | 74 |
5.1%
|
|
| 1996 | 66 |
4.5%
|
|
| 1997 | 76 |
5.2%
|
|
| 1998 | 57 |
3.9%
|
|
| 1999 | 86 |
5.9%
|
|
| 2000 | 74 |
5.1%
|
|
| 2001 | 63 |
4.3%
|
|
| 2002 | 50 |
3.4%
|
|
| 2003 | 29 |
2%
|
|
| 2004 | 18 |
1.2%
|
|
| 2005 | 10 |
0.7%
|
|
| 2006 | 3 |
0.2%
|
|
| 2007 | 1 |
0.1%
|
|
| 2008 | 1 |
0.1%
|
|
| 9999 | Sin información | 3 |