70% (2014)

72% (1987)

56% (1980)

59% (1978)

69% (1979)

61% (1977)

70% (1988)

59% (1979)

80% (1965)

51% (1979)

70% (1982)

68% (1981)

43% (1985)

50% (1973)

55% (1966)

46% (1970)

60% (1976)

56% (1978)

42% (1975)

64% (1980)