40% (1990)

20% (1984)

32% (1973)

55% (1969)

64% (1982)

64% (2000)

54% (1970)

62% (2009)

62% (1978)

0% (1984)

0% (1998)

51% (1970)

0% (1977)

0% (1987)

40% (1976)

65% (1973)

40% (2000)

60% (1995)

35% (1986)

33% (1984)