| Value | Category | Cases | |
|---|---|---|---|
| 1932 | 3 |
0%
|
|
| 1934 | 3 |
0%
|
|
| 1935 | 11 |
0%
|
|
| 1936 | 8 |
0%
|
|
| 1937 | 18 |
0.1%
|
|
| 1938 | 23 |
0.1%
|
|
| 1939 | 24 |
0.1%
|
|
| 1940 | 37 |
0.1%
|
|
| 1941 | 48 |
0.2%
|
|
| 1942 | 64 |
0.2%
|
|
| 1943 | 55 |
0.2%
|
|
| 1944 | 60 |
0.2%
|
|
| 1945 | 90 |
0.3%
|
|
| 1946 | 88 |
0.3%
|
|
| 1947 | 106 |
0.4%
|
|
| 1948 | 129 |
0.4%
|
|
| 1949 | 169 |
0.6%
|
|
| 1950 | 222 |
0.8%
|
|
| 1951 | 169 |
0.6%
|
|
| 1952 | 207 |
0.7%
|
|
| 1953 | 204 |
0.7%
|
|
| 1954 | 200 |
0.7%
|
|
| 1955 | 215 |
0.7%
|
|
| 1956 | 188 |
0.7%
|
|
| 1957 | 219 |
0.8%
|
|
| 1958 | 205 |
0.7%
|
|
| 1959 | 189 |
0.7%
|
|
| 1960 | 293 |
1%
|
|
| 1961 | 224 |
0.8%
|
|
| 1962 | 319 |
1.1%
|
|
| 1963 | 388 |
1.3%
|
|
| 1964 | 373 |
1.3%
|
|
| 1965 | 473 |
1.6%
|
|
| 1966 | 435 |
1.5%
|
|
| 1967 | 455 |
1.6%
|
|
| 1968 | 501 |
1.7%
|
|
| 1969 | 498 |
1.7%
|
|
| 1970 | 602 |
2.1%
|
|
| 1971 | 495 |
1.7%
|
|
| 1972 | 514 |
1.8%
|
|
| 1973 | 564 |
2%
|
|
| 1974 | 530 |
1.8%
|
|
| 1975 | 506 |
1.8%
|
|
| 1976 | 514 |
1.8%
|
|
| 1977 | 482 |
1.7%
|
|
| 1978 | 546 |
1.9%
|
|
| 1979 | 492 |
1.7%
|
|
| 1980 | 567 |
2%
|
|
| 1981 | 470 |
1.6%
|
|
| 1982 | 480 |
1.7%
|
|
| 1983 | 495 |
1.7%
|
|
| 1984 | 506 |
1.8%
|
|
| 1985 | 492 |
1.7%
|
|
| 1986 | 478 |
1.7%
|
|
| 1987 | 468 |
1.6%
|
|
| 1988 | 431 |
1.5%
|
|
| 1989 | 427 |
1.5%
|
|
| 1990 | 475 |
1.6%
|
|
| 1991 | 372 |
1.3%
|
|
| 1992 | 422 |
1.5%
|
|
| 1993 | 385 |
1.3%
|
|
| 1994 | 386 |
1.3%
|
|
| 1995 | 371 |
1.3%
|
|
| 1996 | 358 |
1.2%
|
|
| 1997 | 349 |
1.2%
|
|
| 1998 | 353 |
1.2%
|
|
| 1999 | 295 |
1%
|
|
| 2000 | 374 |
1.3%
|
|
| 2001 | 281 |
1%
|
|
| 2002 | 343 |
1.2%
|
|
| 2003 | 328 |
1.1%
|
|
| 2004 | 300 |
1%
|
|
| 2005 | 317 |
1.1%
|
|
| 2006 | 303 |
1.1%
|
|
| 2007 | 319 |
1.1%
|
|
| 2008 | 333 |
1.2%
|
|
| 2009 | 334 |
1.2%
|
|
| 2010 | 403 |
1.4%
|
|
| 2011 | 355 |
1.2%
|
|
| 2012 | 424 |
1.5%
|
|
| 2013 | 455 |
1.6%
|
|
| 2014 | 778 |
2.7%
|
|
| 2015 | 809 |
2.8%
|
|
| 2016 | 826 |
2.9%
|
|
| 2017 | 807 |
2.8%
|
|
| 2018 | 23 |
0.1%
|