70% (1999)

64% (2001)

55% (2008)

76% (1993)

65% (1993)

56% (2002)

74% (1993)

64% (1997)

63% (2001)

69% (1993)

62% (2003)

46% (2012)

57% (1996)

62% (2002)

65% (2000)

68% (1995)

59% (2003)

52% (2000)

55% (2001)

51% (2001)