78% (1993)

65% (2004)

74% (2002)

69% (1996)

63% (2008)

64% (1995)

48% (2002)

58% (2015)

58% (1998)

60% (1997)

65% (1997)

65% (1993)

74% (2006)

57% (1998)

61% (2014)

57% (2000)

69% (2012)

64% (2007)

61% (1996)

62% (2004)