71% (1980)

73% (1976)

50% (2005)

70% (1979)

0% (1999)

60% (1977)

56% (2011)

0% (1975)

72% (1974)

84% (1986)

60% (1988)

76% (1980)

90% (1978)

73% (1978)

0% (1994)

75% (1975)

64% (2007)

62% (1965)

72% (1975)

70% (2012)