59% (2009)

78% (1979)

66% (1981)

73% (1987)

81% (1998)

71% (1980)

55% (1982)

65% (2003)

67% (2009)

63% (2021)

68% (1986)

68% (1997)

55% (1988)

58% (1990)

73% (1982)

50% (1998)

43% (1986)

63% (1989)

63% (1984)

66% (1989)