64% (2008)

64% (2017)

70% (2012)

63% (2020)

55% (2007)

60% (2004)

62% (2012)

58% (2009)

65% (2013)

50% (2012)

63% (2007)

59% (2008)

53% (2013)

60% (2017)

68% (2003)

70% (2010)

56% (2006)

71% (2013)

0% (1970)

69% (2003)