62% (1978)

56% (1969)

0% (1998)

64% (2000)

44% (1986)

0% (1984)

0% (1987)

64% (1982)

62% (2009)

40% (1990)

54% (1970)

52% (1968)

35% (1973)

35% (1972)

20% (1984)

33% (1984)

0% (1993)

51% (1970)

35% (1986)

90% (1973)