63% (1975)

73% (1973)

69% (1954)

65% (1990)

46% (1983)

63% (1978)

47% (2002)

60% (2010)

70% (1966)

52% (1993)

67% (1964)

63% (1989)

52% (2001)

65% (2007)

66% (1946)

51% (1979)

63% (1936)

60% (1976)

68% (1943)

66% (1982)