80% (2009)

66% (2004)

69% (2000)

72% (2007)

76% (2003)

60% (2001)

52% (2007)

47% (2002)

75% (2010)

67% (2004)

64% (2004)

71% (2003)

63% (2009)

70% (2005)

62% (1999)

67% (1999)

69% (2000)

65% (2008)

66% (1999)

62% (2004)