69% (2012)

71% (2005)

61% (2016)

73% (1999)

66% (2009)

66% (2009)

65% (2008)

74% (2006)

73% (2006)

69% (2004)

75% (1999)

65% (2003)

68% (2004)

71% (2007)

65% (2007)

61% (2013)

60% (2001)

62% (2012)

65% (2007)

65% (2009)