71% (2003)

72% (1992)

65% (2003)

71% (1991)

60% (2004)

72% (1993)

53% (2004)

59% (1991)

76% (2004)

72% (2004)

64% (1994)

63% (2000)

67% (1992)

60% (2001)

65% (2000)

72% (1994)

44% (1994)

74% (1996)

60% (1996)

54% (1996)