82% (1994)

64% (1995)

65% (1981)

67% (1986)

0% (1986)

70% (1986)

40% (1976)

0% (1974)

0% (1979)

0% (1985)

0% (1983)

70% (1963)

0% (1989)

0% (1980)

60% (1974)

0% (1978)

0% (1980)

0% (1994)

0% (1981)

0% (1987)