78% (2001)

60% (1999)

80% (1999)

80% (1998)

0% (1970)

80% (2004)

0% (1995)

20% (2003)

60% (2005)

0% (2002)

0% (2000)

100% (1999)

0% (2003)

0% (1999)

0% (1997)

0% (2000)

5% (2006)

20% (2003)

0% (2000)

0% (2009)