67% (2008)

52% (2007)

44% (2009)

66% (2010)

51% (2008)

62% (2009)

65% (2003)

60% (2006)

57% (2010)

50% (2009)

73% (2012)

61% (2007)

62% (2008)

51% (2010)

66% (2011)

52% (2005)

63% (2006)

59% (2009)

57% (2007)

48% (2007)