50% (1989)

47% (1983)

20% (1991)

43% (1987)

20% (1989)

20% (1988)

69% (1998)

20% (1988)

20% (1993)

20% (1990)

40% (2001)

0% (2013)

40% (1986)

30% (1988)

20% (1983)

57% (1989)

20% (1991)

0% (1986)

20% (1999)

20% (1998)