0% (1980)

50% (2005)

80% (1988)

75% (1980)

70% (1977)

40% (2009)

75% (1976)

70% (2012)

67% (1967)

72% (1974)

70% (1979)

60% (2008)

68% (1965)

0% (1992)

0% (2012)

90% (1978)

84% (1969)

0% (2001)

50% (1978)

60% (1979)