50% (1997)

40% (1998)

45% (1986)

55% (1985)

30% (1984)

80% (1979)

40% (1983)

0% (2016)

37% (1992)

0% (1992)

57% (1993)

30% (2014)

60% (1986)

0% (1991)

60% (1989)

40% (1984)

40% (1984)

40% (1978)

20% (1986)

0% (1983)