0% (1997)

70% (1995)

80% (1994)

0% (1978)

75% (1996)

59% (1995)

60% (1994)

72% (2005)

90% (1980)

90% (1996)

0% (1997)

0% (1997)

0% (1992)

0% (2003)

0% (2007)

0% (1999)

90% (2001)

0% (2006)

0% (1998)

0% (1997)