72% (1985)

65% (2009)

67% (2011)

68% (1998)

55% (1987)

59% (1994)

66% (1997)

63% (1988)

74% (2000)

79% (2019)

67% (1976)

65% (1999)

52% (2004)

80% (1948)

66% (2014)

61% (1992)

69% (1994)

74% (1972)

63% (2001)

68% (1990)