58% (1999)

84% (1999)

63% (1998)

69% (2002)

67% (2005)

72% (2009)

68% (2005)

90% (2011)

63% (2004)

68% (2001)

59% (2007)

87% (1999)

80% (2001)

57% (2007)

60% (2003)

64% (2010)

60% (2002)