63% (2004)

71% (1999)

63% (2006)

66% (1997)

77% (2002)

70% (1999)

57% (1999)

51% (2002)

63% (2001)

61% (2003)

72% (1998)

69% (1999)

66% (1991)

67% (1998)

0% (1997)

65% (1993)

69% (2001)

65% (1997)

68% (1997)

64% (1998)