63% (2006)

52% (2006)

58% (2010)

63% (2009)

50% (2009)

60% (2011)

62% (2007)

51% (2008)

51% (2010)

58% (2006)

62% (2010)

60% (2009)

66% (2011)

47% (2007)

59% (2012)

57% (2007)

52% (2009)

45% (2008)

61% (2004)

54% (2007)