73% (1981)

70% (1970)

77% (1970)

73% (1982)

52% (1974)

74% (1970)

50% (1984)

59% (1984)

58% (2014)

50% (1976)

69% (1986)

65% (1978)

44% (1972)

65% (1988)

64% (1979)

55% (1987)

47% (2005)

0% (1983)

63% (1973)

59% (1983)