78% (2003)

69% (2005)

50% (2009)

54% (2000)

70% (1999)

86% (2006)

58% (2000)

90% (2004)

55% (2004)

0% (1997)

67% (2004)

80% (1995)

0% (1997)

0% (2003)

70% (2010)

60% (2006)

72% (2001)

53% (2005)

60% (2005)

85% (2006)