0% (1995)

0% (1997)

0% (1986)

0% (1996)

0% (1997)

0% (1997)

0% (1980)

0% (1997)

73% (1995)

50% (1999)

0% (1984)

90% (1996)

0% (2000)

90% (1994)

90% (1998)

0% (1978)

40% (1998)

60% (1992)

90% (1989)

0% (1979)