88% (2002)

68% (1981)

79% (1996)

73% (2001)

86% (2000)

85% (2004)

73% (1994)

79% (2002)

61% (2005)

70% (2002)

79% (1998)

43% (2002)

73% (1978)

80% (1968)

84% (2002)

82% (2022)

82% (2005)

81% (2002)

60% (2004)

62% (2008)