79% (2001)

73% (2001)

72% (1992)

65% (2000)

77% (1999)

75% (1997)

72% (1996)

72% (2004)

71% (1994)

58% (2003)

58% (2000)

68% (2000)

70% (1995)

55% (2003)

67% (2002)

69% (2011)

56% (2001)

63% (1998)

69% (2013)

58% (1996)