80% (2009)

72% (2007)

76% (2003)

70% (2001)

72% (2003)

60% (2001)

63% (2009)

64% (2004)

62% (2004)

66% (2004)

67% (2004)

55% (2007)

75% (2010)

66% (2007)

65% (2008)

47% (2002)

69% (2000)

66% (2013)

65% (2006)

70% (1997)