40% (2015)

18% (2014)

43% (2013)

60% (2016)

45% (2015)

40% (2011)

0% (2014)

34% (2015)

78% (1986)

35% (2013)

36% (2015)

39% (2011)

58% (2015)

73% (2009)

42% (2012)

55% (2008)

55% (2011)

10% (2013)

84% (2009)

79% (2007)