1945- 22
Since 1945 18
1990- 5
1991- 5
1970- 4
21st century 4
Since 1990 4
Since 1991 4
Since 1970 3
1960- 2
1968- 2
1971- 2
1971-1991 2
1972- 2
1974- 2
1974-2009 2
1975- 2
1975-2008 2
1979-1997 2
1980- 2
1981- 2
1981-2001 2
1982-1994 2
1983- 2
1986- 2
1989- 2
1997- 2
Since 1960 2
Since 1972 2
Since 1975 2
Since 1976 2
Since 1983 2
Since 1986 2
1918- 1
1945-1989 1
1946- 1
1947- 1
1948-1994 1
1949- 1
1952- 1
1958- 1
1961- 1
1961-1991 1
1965- 1
1966-1997 1
1966-1998 1
1968-1989 1
1968-1998 1
1970-1982 1
1971-1990 1
1973- 1
1975-1982 1
1976- 1
1976-1994 1
1976-2000 1
1979-1983 1
1981-1995 1
1981-2009 1
1982- 1
1983-2002 1
1984- 1
1984-1993 1
1985- 1
1988- 1
1988-2002 1
1990 1
1993-2007 1
1994- 1
1995-2007 1
1998- 1
2000- 1
2000-2099 1
2001- 1
2001-2009 1
2002- 1
2007-2012 1
2008- 1
Estados Unidos de América 1
Since 1947 1
Since 1948 1
Since 1949 1
Since 1952 1
Since 1958 1
Since 1966 1
Since 1968 1
Since 1971 1
Since 1974 1
Since 1981 1
Since 1985 1
Since 1988 1
Since 1989 1
Since 1997 1
Since 2001 1