71% (1993)

67% (2007)

68% (2006)

62% (1999)

60% (2000)

66% (2001)

64% (1998)

67% (2003)

57% (2002)

57% (1999)

8% (2003)

79% (1999)

58% (1987)

65% (2008)

80% (2000)

0% (2007)

60% (2005)

72% (2006)

50% (2005)

45% (2006)