63% (1993)

55% (2014)

69% (2005)

55% (2003)

46% (2004)

66% (2013)

74% (1951)

79% (2009)

66% (2015)

80% (2008)

64% (1996)

49% (1961)

82% (1988)

64% (2009)

50% (2016)

86% (2011)

66% (1989)

71% (2015)

69% (1959)

50% (2007)