0% (1979)

57% (1996)

0% (1987)

80% (1950)

63% (1971)

83% (1981)

53% (2001)

43% (1988)

70% (1956)

43% (2005)

62% (1999)

52% (1977)

0% (1978)

50% (1997)

56% (2003)

50% (1988)

47% (2004)

0% (1984)

47% (1982)

20% (1978)