73% (2016)

70% (2012)

77% (2013)

40% (2007)

75% (2005)

65% (2014)

0% (2015)

60% (2014)

0% (2013)

0% (2011)

45% (1985)

40% (2014)

70% (2015)

0% (2014)

82% (1970)

0% (2007)

0% (1990)

0% (2013)

70% (2013)

0% (1970)