| Value | Category | Cases | |
|---|---|---|---|
| 1937 | 1 |
0%
|
|
| 1942 | 1 |
0%
|
|
| 1948 | 2 |
0%
|
|
| 1950 | 1 |
0%
|
|
| 1951 | 1 |
0%
|
|
| 1952 | 2 |
0%
|
|
| 1953 | 2 |
0%
|
|
| 1956 | 1 |
0%
|
|
| 1959 | 3 |
0%
|
|
| 1960 | 1 |
0%
|
|
| 1961 | 1 |
0%
|
|
| 1963 | 3 |
0%
|
|
| 1964 | 3 |
0%
|
|
| 1965 | 6 |
0%
|
|
| 1966 | 4 |
0%
|
|
| 1967 | 3 |
0%
|
|
| 1968 | 4 |
0%
|
|
| 1969 | 8 |
0%
|
|
| 1970 | 9 |
0.1%
|
|
| 1971 | 7 |
0%
|
|
| 1972 | 12 |
0.1%
|
|
| 1973 | 9 |
0.1%
|
|
| 1974 | 10 |
0.1%
|
|
| 1975 | 15 |
0.1%
|
|
| 1976 | 21 |
0.1%
|
|
| 1977 | 12 |
0.1%
|
|
| 1978 | 25 |
0.1%
|
|
| 1979 | 25 |
0.1%
|
|
| 1980 | 49 |
0.3%
|
|
| 1981 | 24 |
0.1%
|
|
| 1982 | 39 |
0.2%
|
|
| 1983 | 25 |
0.1%
|
|
| 1984 | 38 |
0.2%
|
|
| 1985 | 41 |
0.2%
|
|
| 1986 | 49 |
0.3%
|
|
| 1987 | 62 |
0.4%
|
|
| 1988 | 48 |
0.3%
|
|
| 1989 | 73 |
0.4%
|
|
| 1990 | 134 |
0.8%
|
|
| 1991 | 64 |
0.4%
|
|
| 1992 | 145 |
0.9%
|
|
| 1993 | 93 |
0.6%
|
|
| 1994 | 129 |
0.8%
|
|
| 1995 | 136 |
0.8%
|
|
| 1996 | 118 |
0.7%
|
|
| 1997 | 194 |
1.2%
|
|
| 1998 | 252 |
1.5%
|
|
| 1999 | 226 |
1.3%
|
|
| 2000 | 412 |
2.5%
|
|
| 2001 | 243 |
1.4%
|
|
| 2002 | 367 |
2.2%
|
|
| 2003 | 271 |
1.6%
|
|
| 2004 | 390 |
2.3%
|
|
| 2005 | 454 |
2.7%
|
|
| 2006 | 464 |
2.8%
|
|
| 2007 | 540 |
3.2%
|
|
| 2008 | 590 |
3.5%
|
|
| 2009 | 634 |
3.8%
|
|
| 2010 | 636 |
3.8%
|
|
| 2011 | 707 |
4.2%
|
|
| 2012 | 853 |
5.1%
|
|
| 9998 | don't know | 1051 |
6.3%
|
| 9999 | not applicable | 4611 |
27.4%
|
| 9999995 | missing:impute | 2446 |
14.6%
|
| Sysmiss | 85 |