0% (1972)

43% (1975)

50% (1973)

50% (1986)

60% (1992)

94% (1971)

0% (1990)

55% (1984)

78% (2008)

40% (1991)

30% (1976)

0% (1957)

68% (1987)

0% (2002)

49% (1976)

90% (1988)

69% (1987)

50% (1970)

55% (1975)

70% (1950)