72% (1984)

81% (1981)

74% (1993)

74% (1972)

70% (1985)

60% (2021)

63% (1997)

71% (2001)

62% (2007)

71% (1982)

63% (1984)

64% (1989)

58% (2002)

67% (2000)

61% (2003)

71% (2005)

69% (1955)

60% (2009)

60% (2002)

75% (2002)