0% (1970)

0% (2005)

0% (1970)

70% (2007)

35% (1988)

60% (1995)

60% (1992)

80% (1997)

0% (1994)

32% (2005)

76% (2002)

30% (2007)

73% (2002)

70% (2000)

0% (2001)

0% (2006)

67% (1992)

0% (2006)

27% (1999)

0% (1990)