73% (2008)

64% (1996)

45% (1975)

70% (1976)

67% (2011)

0% (1979)

67% (1977)

77% (2010)

50% (1998)

50% (1986)

57% (1985)

60% (1976)

69% (1988)

50% (1986)

70% (1978)

50% (1976)

80% (1982)

55% (1974)

0% (1979)

0% (1976)