59% (2004)

67% (2011)

50% (1976)

66% (2004)

62% (2007)

61% (1988)

68% (2012)

60% (1996)

71% (2006)

47% (1984)

50% (2012)

60% (2013)

69% (1949)

60% (2002)

62% (1993)

69% (2000)

66% (2013)

73% (2018)

80% (2017)

65% (2014)