74% (1981)

70% (1971)

77% (1970)

0% (1977)

72% (1982)

53% (1974)

66% (1978)

58% (1983)

50% (1976)

50% (1984)

59% (1984)

64% (1979)

67% (1988)

47% (2005)

56% (2014)

44% (1972)

20% (1991)

63% (1973)

55% (1987)

50% (1975)