0% (1967)

35% (1980)

0% (1980)

60% (1986)

50% (2001)

40% (1984)

35% (1971)

0% (1952)

50% (1991)

72% (1972)

30% (2003)

38% (1998)

60% (1993)

0% (1959)

0% (1956)

52% (1990)

50% (2004)

0% (2012)

50% (1982)

0% (1958)