| Value | Category | Cases | |
|---|---|---|---|
| 1949 | 1 |
0%
|
|
| 1950 | 2 |
0%
|
|
| 1951 | 1 |
0%
|
|
| 1953 | 2 |
0%
|
|
| 1954 | 4 |
0%
|
|
| 1955 | 1 |
0%
|
|
| 1956 | 3 |
0%
|
|
| 1957 | 2 |
0%
|
|
| 1958 | 7 |
0.1%
|
|
| 1959 | 4 |
0%
|
|
| 1960 | 5 |
0%
|
|
| 1961 | 5 |
0%
|
|
| 1962 | 4 |
0%
|
|
| 1963 | 6 |
0%
|
|
| 1964 | 1 |
0%
|
|
| 1965 | 7 |
0.1%
|
|
| 1966 | 5 |
0%
|
|
| 1967 | 9 |
0.1%
|
|
| 1968 | 10 |
0.1%
|
|
| 1969 | 6 |
0%
|
|
| 1970 | 11 |
0.1%
|
|
| 1971 | 6 |
0%
|
|
| 1972 | 5 |
0%
|
|
| 1973 | 7 |
0.1%
|
|
| 1974 | 7 |
0.1%
|
|
| 1975 | 9 |
0.1%
|
|
| 1976 | 12 |
0.1%
|
|
| 1977 | 4 |
0%
|
|
| 1978 | 20 |
0.2%
|
|
| 1979 | 18 |
0.1%
|
|
| 1980 | 30 |
0.2%
|
|
| 1981 | 17 |
0.1%
|
|
| 1982 | 29 |
0.2%
|
|
| 1983 | 25 |
0.2%
|
|
| 1984 | 36 |
0.3%
|
|
| 1985 | 78 |
0.6%
|
|
| 1986 | 72 |
0.6%
|
|
| 1987 | 57 |
0.5%
|
|
| 1988 | 68 |
0.6%
|
|
| 1989 | 82 |
0.7%
|
|
| 1990 | 232 |
1.9%
|
|
| 1991 | 184 |
1.5%
|
|
| 1992 | 162 |
1.3%
|
|
| 1993 | 132 |
1.1%
|
|
| 1994 | 157 |
1.3%
|
|
| 1995 | 362 |
3%
|
|
| 1996 | 295 |
2.4%
|
|
| 1997 | 203 |
1.7%
|
|
| 1998 | 233 |
1.9%
|
|
| 1999 | 272 |
2.2%
|
|
| 2000 | 536 |
4.4%
|
|
| 2001 | 343 |
2.8%
|
|
| 2002 | 384 |
3.2%
|
|
| 2003 | 304 |
2.5%
|
|
| 2004 | 338 |
2.8%
|
|
| 2005 | 566 |
4.7%
|
|
| 2006 | 588 |
4.9%
|
|
| 2007 | 427 |
3.5%
|
|
| 2008 | 409 |
3.4%
|
|
| 2009 | 345 |
2.9%
|
|
| 2010 | 550 |
4.5%
|
|
| 2011 | 416 |
3.4%
|
|
| 2012 | 536 |
4.4%
|
|
| 2013 | 519 |
4.3%
|
|
| 2014 | 573 |
4.7%
|
|
| 2015 | 639 |
5.3%
|
|
| 2016 | 1505 |
12.4%
|
|
| 2017 | 214 |
1.8%
|