47% (1979)

0% (1970)

70% (1988)

50% (1978)

0% (2003)

50% (1970)

90% (1970)

50% (1985)

0% (2002)

50% (2002)

47% (1987)

60% (1970)

0% (1986)

35% (1969)

50% (1988)

30% (1976)

70% (2003)

0% (1970)

50% (1970)

0% (1977)