76% (2011)

81% (2005)

90% (2007)

80% (2004)

66% (2006)

82% (2018)

0% (2003)

67% (2003)

88% (2005)

0% (1998)

0% (2001)

82% (1997)

69% (2003)

55% (2003)

80% (2002)

70% (2002)

0% (2002)

70% (2001)

0% (2003)

100% (2006)