40% (1979)

70% (1979)

78% (1968)

43% (1987)

59% (1984)

68% (1989)

65% (2020)

65% (2000)

70% (2003)

58% (1994)

50% (1978)

63% (2013)

49% (1986)

52% (1971)

38% (1979)

37% (1970)

65% (1973)

57% (1972)

62% (1972)

60% (1980)