58% (1978)

68% (1992)

70% (1974)

47% (1972)

43% (1973)

56% (1977)

63% (2003)

0% (1994)

55% (1975)

64% (1976)

35% (1979)

76% (2010)

46% (1992)

73% (1995)

58% (1988)

76% (1986)

0% (1968)

58% (1977)

64% (2000)

73% (1989)