78% (2003)

69% (2005)

54% (2009)

67% (2004)

100% (2009)

86% (2006)

70% (1999)

0% (2006)

70% (2004)

72% (2001)

0% (2004)

90% (2004)

58% (2000)

20% (1999)

85% (2006)

60% (2005)

60% (2006)

0% (2002)

0% (1997)

70% (2010)