69% (2001)

61% (2017)

58% (2006)

57% (2003)

61% (2009)

68% (2012)

61% (2008)

59% (2011)

60% (2006)

50% (2007)

52% (2007)

44% (2008)

56% (2009)

0% (2010)

60% (2010)

57% (2009)

0% (2005)