72% (2017)

60% (2006)

73% (1941)

69% (1999)

53% (1992)

70% (2012)

67% (1954)

72% (1959)

65% (1988)

72% (1965)

67% (1976)

70% (1981)

75% (1961)

56% (1987)

50% (2008)

71% (1971)

65% (1999)

67% (2002)

71% (1945)

65% (1992)