59% (2014)

15% (2006)

57% (1997)

52% (2010)

54% (2011)

52% (2014)

71% (2013)

71% (2008)

56% (1980)

66% (2002)

57% (2008)

37% (1962)

47% (2012)

45% (2003)

33% (2010)

30% (2009)

58% (2007)

65% (2009)

0% (2001)

79% (2008)