63% (1989)

58% (2008)

59% (1971)

65% (1970)

50% (1975)

50% (1978)

55% (1996)

0% (1977)

51% (1973)

66% (1976)

50% (1978)

54% (1987)

63% (1979)

69% (1989)

49% (2005)

66% (2010)

57% (2001)

37% (1973)

57% (1983)

48% (1970)