73% (1982)

60% (1972)

76% (1979)

50% (1980)

72% (1970)

36% (1969)

56% (1968)

72% (1971)

70% (1974)

73% (1983)

30% (1974)

0% (2009)

0% (1969)

0% (1975)

0% (1971)