78% (2003)

69% (2005)

60% (2006)

50% (2009)

0% (2005)

70% (2010)

58% (2000)

72% (2001)

0% (1997)

55% (2000)

90% (2004)

0% (2006)

86% (2006)

70% (1999)

55% (2004)

0% (2003)

67% (2004)

53% (2005)

20% (1999)

100% (2009)