69% (1989)

0% (1986)

42% (1971)

65% (1985)

50% (1975)

0% (1998)

53% (1997)

80% (1972)

0% (1987)

60% (1983)

50% (1983)

65% (1970)

0% (1996)

0% (1977)

39% (2003)

50% (1978)

65% (1971)

50% (1997)

53% (1993)

50% (1977)