73% (1981)

77% (1970)

71% (1971)

72% (1982)

73% (1970)

64% (1979)

50% (1984)

59% (1984)

48% (1984)

52% (1974)

55% (1987)

0% (1977)

58% (1983)

47% (2005)

58% (2014)

50% (1976)

65% (1988)

20% (1994)

56% (2014)

65% (1978)