71% (1979)

77% (1969)

70% (1982)

63% (1981)

67% (1994)

73% (1980)

71% (1996)

65% (1995)

0% (1994)

61% (1984)

67% (1982)

71% (1994)

63% (1980)

77% (1979)

62% (1977)

68% (1978)

72% (1977)

65% (2000)

69% (1976)

72% (1979)