72% (2012)

78% (2002)

61% (2001)

69% (2015)

63% (2003)

68% (1998)

74% (2014)

47% (2004)

66% (2005)

66% (2011)

63% (2008)

73% (1994)

65% (2010)

59% (2017)

63% (1999)

62% (2004)

63% (2008)

57% (2007)

63% (2008)

54% (1998)