80% (1987)

74% (2012)

62% (1992)

69% (1977)

64% (1968)

72% (2011)

66% (2001)

50% (1986)

74% (1994)

81% (1987)

55% (2011)

50% (1998)

60% (1997)

70% (1989)

56% (2015)

80% (2002)

53% (1998)

68% (2019)

58% (2016)

63% (2009)