63% (1978)

60% (1973)

62% (1967)

55% (1970)

20% (1982)

60% (1968)

60% (1967)

0% (1970)

50% (1983)

67% (1979)

50% (1980)

52% (1999)

0% (2010)

0% (1973)

58% (1985)

51% (1974)

60% (1976)

0% (2009)

52% (1972)

0% (1977)