74% (1979)

75% (1972)

71% (2010)

74% (1999)

77% (1982)

74% (1977)

65% (1970)

73% (1974)

66% (2020)

61% (2001)

66% (1979)

70% (2011)

70% (2016)

69% (1987)

69% (1984)

65% (1976)

60% (2005)

71% (1974)

75% (1997)

67% (1971)