| Value | Category | Cases | |
|---|---|---|---|
| 1931 | 1 |
0%
|
|
| 1932 | 4 |
0%
|
|
| 1933 | 2 |
0%
|
|
| 1934 | 4 |
0%
|
|
| 1935 | 10 |
0%
|
|
| 1936 | 8 |
0%
|
|
| 1937 | 16 |
0.1%
|
|
| 1938 | 29 |
0.1%
|
|
| 1939 | 26 |
0.1%
|
|
| 1940 | 49 |
0.2%
|
|
| 1941 | 58 |
0.2%
|
|
| 1942 | 59 |
0.2%
|
|
| 1943 | 62 |
0.2%
|
|
| 1944 | 69 |
0.2%
|
|
| 1945 | 98 |
0.3%
|
|
| 1946 | 82 |
0.3%
|
|
| 1947 | 104 |
0.4%
|
|
| 1948 | 136 |
0.5%
|
|
| 1949 | 152 |
0.5%
|
|
| 1950 | 234 |
0.8%
|
|
| 1951 | 190 |
0.7%
|
|
| 1952 | 216 |
0.8%
|
|
| 1953 | 195 |
0.7%
|
|
| 1954 | 190 |
0.7%
|
|
| 1955 | 221 |
0.8%
|
|
| 1956 | 191 |
0.7%
|
|
| 1957 | 221 |
0.8%
|
|
| 1958 | 230 |
0.8%
|
|
| 1959 | 181 |
0.6%
|
|
| 1960 | 297 |
1.1%
|
|
| 1961 | 246 |
0.9%
|
|
| 1962 | 318 |
1.1%
|
|
| 1963 | 338 |
1.2%
|
|
| 1964 | 355 |
1.3%
|
|
| 1965 | 463 |
1.6%
|
|
| 1966 | 372 |
1.3%
|
|
| 1967 | 454 |
1.6%
|
|
| 1968 | 525 |
1.9%
|
|
| 1969 | 467 |
1.7%
|
|
| 1970 | 579 |
2.1%
|
|
| 1971 | 486 |
1.7%
|
|
| 1972 | 511 |
1.8%
|
|
| 1973 | 519 |
1.8%
|
|
| 1974 | 485 |
1.7%
|
|
| 1975 | 530 |
1.9%
|
|
| 1976 | 487 |
1.7%
|
|
| 1977 | 423 |
1.5%
|
|
| 1978 | 498 |
1.8%
|
|
| 1979 | 479 |
1.7%
|
|
| 1980 | 586 |
2.1%
|
|
| 1981 | 400 |
1.4%
|
|
| 1982 | 493 |
1.7%
|
|
| 1983 | 455 |
1.6%
|
|
| 1984 | 516 |
1.8%
|
|
| 1985 | 521 |
1.8%
|
|
| 1986 | 505 |
1.8%
|
|
| 1987 | 456 |
1.6%
|
|
| 1988 | 447 |
1.6%
|
|
| 1989 | 415 |
1.5%
|
|
| 1990 | 447 |
1.6%
|
|
| 1991 | 401 |
1.4%
|
|
| 1992 | 383 |
1.4%
|
|
| 1993 | 367 |
1.3%
|
|
| 1994 | 359 |
1.3%
|
|
| 1995 | 362 |
1.3%
|
|
| 1996 | 346 |
1.2%
|
|
| 1997 | 336 |
1.2%
|
|
| 1998 | 327 |
1.2%
|
|
| 1999 | 305 |
1.1%
|
|
| 2000 | 389 |
1.4%
|
|
| 2001 | 295 |
1%
|
|
| 2002 | 300 |
1.1%
|
|
| 2003 | 328 |
1.2%
|
|
| 2004 | 306 |
1.1%
|
|
| 2005 | 346 |
1.2%
|
|
| 2006 | 330 |
1.2%
|
|
| 2007 | 325 |
1.2%
|
|
| 2008 | 338 |
1.2%
|
|
| 2009 | 334 |
1.2%
|
|
| 2010 | 406 |
1.4%
|
|
| 2011 | 386 |
1.4%
|
|
| 2012 | 497 |
1.8%
|
|
| 2013 | 768 |
2.7%
|
|
| 2014 | 812 |
2.9%
|
|
| 2015 | 870 |
3.1%
|
|
| 2016 | 869 |
3.1%
|
|
| 2017 | 11 |
0%
|