63% (1985)

62% (2016)

57% (1990)

59% (1991)

69% (1979)

61% (1981)

72% (1979)

72% (1984)

61% (2016)

39% (1990)

44% (1998)

58% (1988)

53% (1996)

47% (1980)

69% (1988)

54% (1986)

62% (1980)

52% (1981)

48% (1980)

58% (1998)