60% (2011)

61% (2012)

66% (2000)

72% (2001)

100% (2013)

66% (2006)

50% (2010)

67% (2011)

40% (2005)

70% (2001)

66% (2010)

20% (2002)

42% (2013)

73% (2006)

65% (2012)

65% (2013)

67% (2003)

54% (2008)

37% (2012)

67% (2013)