50% (1988)

74% (1987)

0% (1981)

63% (1966)

48% (1991)

65% (1986)

52% (1982)

43% (1985)

55% (1960)

50% (1976)

58% (2009)

67% (1989)

64% (1960)

0% (1980)

59% (1967)

54% (2011)

60% (1981)

69% (1968)

65% (1987)

90% (1987)