49% (1979)

60% (1975)

40% (1998)

62% (1974)

61% (1972)

0% (1973)

71% (1982)

54% (1987)

35% (1963)

30% (2000)

0% (1999)

65% (1983)

51% (1974)

0% (1984)

44% (1985)

55% (1952)

40% (2002)

74% (1974)

55% (1974)

72% (1949)