62% (1967)

70% (2005)

70% (2006)

80% (2005)

0% (2001)

0% (1979)

0% (1962)

0% (1981)

60% (2006)

0% (1979)

57% (2004)

0% (1987)

50% (1998)

0% (1995)

0% (1980)

0% (1983)

0% (2003)

50% (1976)

0% (1960)

100% (2007)