47% (1979)

66% (1989)

61% (1974)

65% (1995)

64% (2010)

65% (1996)

67% (1998)

65% (1999)

71% (1925)

82% (2010)

61% (1988)

60% (2003)

72% (1985)

77% (1999)

63% (1984)

63% (2017)

65% (2002)

71% (1972)

68% (2015)

60% (2010)