70% (2014)

58% (1976)

69% (1979)

56% (1980)

42% (1981)

61% (1979)

60% (1977)

58% (1978)

49% (1981)

30% (1983)

69% (1987)

59% (1979)

50% (1979)

45% (1973)

80% (1965)

54% (1978)

56% (2015)

72% (1982)

40% (1979)

69% (1981)