72% (1971)

72% (1971)

75% (1980)

72% (1980)

67% (1968)

0% (1965)

71% (1968)

77% (1976)

69% (1969)

72% (1969)

68% (1984)

47% (1970)

78% (1965)

60% (1981)

73% (1970)

53% (2008)

83% (1983)

60% (1982)

66% (1963)

45% (1983)