38% (2012)

64% (2011)

60% (2006)

33% (2008)

20% (2012)

0% (1970)

55% (2012)

57% (2006)

48% (2008)

38% (2007)

45% (2011)

58% (2007)

62% (2010)

30% (2007)

55% (2007)

70% (2004)

0% (2006)

47% (2005)

17% (2008)

54% (2014)