55% (1978)

48% (1970)

50% (1970)

42% (1982)

57% (1973)

40% (2002)

58% (1965)

57% (1966)

35% (1985)

0% (2002)

57% (1985)

0% (1990)

63% (1956)

63% (1971)

46% (1993)

70% (1957)

0% (1976)

54% (1972)

0% (1987)

50% (1984)