80% (2009)

71% (2003)

72% (2007)

69% (2000)

76% (2003)

68% (2004)

60% (2001)

75% (2010)

61% (2000)

66% (2004)

62% (2003)

68% (2000)

65% (2004)

70% (2005)

52% (2007)

63% (2009)

66% (1999)

63% (1999)

69% (2010)

51% (2001)