62% (1978)

33% (1984)

64% (1982)

56% (1969)

51% (1970)

62% (2009)

0% (1984)

40% (2000)

0% (1998)

35% (1986)

44% (1986)

57% (1968)

40% (1990)

65% (2000)

32% (1973)

61% (1973)

43% (1998)

90% (1973)

20% (1984)

0% (1977)