80% (1987)

80% (1986)

50% (1994)

0% (1989)

60% (2008)

0% (1999)

55% (1996)

80% (1979)

67% (1995)

70% (1987)

65% (1981)

47% (1998)

0% (1992)

0% (1994)

60% (2002)

80% (1989)

80% (1989)

0% (1980)

70% (1982)

60% (1988)