44% (1994)

69% (1997)

74% (1996)

50% (1993)

69% (1996)

72% (1994)

67% (1992)

67% (1992)

60% (1994)

61% (1998)

62% (1996)

64% (1995)

76% (1994)

58% (1993)

51% (2004)

67% (1995)

60% (1996)

68% (1996)

59% (1995)

47% (1993)