73% (2008)

45% (1975)

67% (2011)

70% (1976)

64% (1996)

62% (1990)

50% (1986)

0% (1975)

50% (1992)

67% (1977)

77% (2010)

57% (1985)

80% (1982)

69% (1988)

55% (1974)

0% (1978)

50% (1994)

0% (1979)

50% (1986)

50% (1998)