70% (1976)

75% (2000)

40% (1999)

60% (2004)

72% (2004)

65% (2002)

63% (2003)

60% (2001)

87% (2003)

77% (2001)

68% (1977)

50% (2002)

90% (2002)

56% (2000)

64% (2001)

0% (2001)

63% (2000)

70% (2002)

40% (1997)

76% (2000)