0% (1971)

64% (2003)

70% (1991)

0% (1977)

60% (1977)

85% (1980)

66% (1979)

74% (1983)

52% (1988)

0% (1976)

50% (1973)

60% (1978)

0% (1981)

63% (1974)

70% (1961)

90% (1980)

50% (1982)

0% (1970)

0% (1988)

55% (1991)