71% (2014)

64% (2000)

74% (1996)

76% (2001)

59% (2001)

76% (1994)

69% (2007)

60% (2003)

48% (2013)

61% (2005)

55% (2006)

71% (1996)

65% (1997)

60% (2000)

54% (2010)

65% (2004)

58% (2005)

75% (2005)

65% (2011)

57% (2002)