67% (1993)

73% (1966)

74% (2010)

74% (2001)

77% (1979)

70% (2013)

46% (2010)

69% (2012)

61% (2014)

56% (1992)

71% (1988)

70% (2017)

72% (1984)

65% (2000)

65% (2010)

60% (2014)

71% (2003)

77% (1993)

67% (2008)

54% (2017)