69% (2011)

75% (2006)

67% (2007)

60% (2011)

75% (2002)

54% (2009)

67% (2002)

71% (2004)

53% (2003)

57% (2008)

80% (2010)

70% (2009)

57% (2010)

65% (2006)

0% (2002)

0% (2002)

68% (2007)

65% (2001)

66% (2002)

0% (1999)