64% (1986)

73% (2001)

79% (1999)

0% (1970)

65% (2008)

66% (1996)

51% (1976)

62% (1994)

0% (1970)

0% (1970)

51% (2003)

68% (1994)

55% (1973)

0% (1970)

0% (1970)

70% (1985)

37% (2001)

75% (1976)

0% (1970)

72% (2016)