80% (1976)

0% (1990)

70% (1990)

44% (1999)

62% (1992)

54% (1973)

0% (1957)

65% (1990)

64% (2001)

47% (1974)

0% (1981)

60% (1996)

0% (1986)

52% (1997)

75% (1988)

68% (1997)

70% (1977)

0% (1958)

70% (1963)

66% (1963)