75% (1980)

70% (1977)

56% (2011)

80% (1988)

61% (2001)

60% (2008)

90% (1978)

75% (1976)

60% (1979)

0% (1969)

0% (2004)

0% (1992)

70% (2012)

76% (1980)

70% (1979)

67% (1967)

0% (2012)

50% (2005)

0% (1975)

73% (1978)