70% (2024)

75% (2019)

74% (1976)

79% (1992)

75% (1979)

75% (2014)

71% (1973)

63% (1988)

67% (1976)

78% (2003)

69% (1970)

65% (1983)

69% (2018)

73% (1973)

68% (1968)

69% (1986)

75% (2006)

60% (1982)

72% (2009)

80% (2008)