76% (1999)

0% (1979)

50% (1977)

0% (1951)

0% (1982)

0% (1969)

64% (1989)

90% (1960)

0% (1985)

63% (1989)

56% (2000)

73% (1997)

57% (1986)

72% (1972)

65% (1979)

0% (1991)

53% (2005)

47% (1998)

50% (1999)

50% (1986)