80% (1999)

76% (1993)

72% (1996)

81% (1993)

59% (1995)

65% (1997)

57% (1994)

70% (1995)

62% (1998)

70% (1995)

60% (1997)

44% (1993)

70% (1995)

72% (1995)

61% (2007)

54% (1996)

65% (1994)

70% (1995)

62% (1990)

69% (1992)