100% (1987)

90% (1998)

0% (1995)

0% (1999)

0% (1979)

90% (1996)

0% (1999)

50% (1979)

73% (1995)

0% (1980)

90% (2001)

0% (1979)

0% (2003)

0% (1978)

0% (1986)

0% (1980)

0% (1993)

0% (1980)

0% (1997)

80% (1994)