63% (1968)

80% (1978)

54% (1983)

56% (1982)

64% (1989)

57% (1988)

71% (1983)

53% (1982)

58% (1985)

0% (1973)

60% (1982)

50% (1984)

0% (1987)

63% (1973)

48% (1988)

0% (1958)

65% (1976)

50% (1957)

61% (1978)

51% (2016)