37% (1992)

40% (1983)

40% (1998)

30% (2014)

0% (1988)

40% (1984)

60% (1989)

30% (1984)

0% (1991)

0% (1997)

80% (1979)

40% (1984)

0% (1983)

50% (1997)

50% (1991)

57% (1993)

45% (1986)

20% (1986)

20% (1990)

40% (1978)