76% (2011)

80% (2004)

81% (2005)

82% (2018)

0% (1998)

82% (1997)

67% (2003)

88% (2005)

69% (2003)

80% (2002)

0% (2001)

66% (2006)

70% (2001)

90% (2007)

55% (2003)

90% (2007)

0% (2003)

70% (2002)

0% (2002)

0% (2003)