78% (2003)

69% (2005)

50% (2009)

55% (2000)

0% (2003)

90% (2004)

58% (2000)

86% (2006)

60% (2006)

0% (2005)

60% (2005)

0% (2006)

55% (2004)

100% (2009)

0% (2004)

0% (2002)

67% (2004)

72% (2001)

0% (1970)

70% (2010)