73% (2009)

60% (2011)

77% (1987)

77% (1986)

71% (2014)

90% (2009)

0% (2013)

43% (2013)

80% (2015)

30% (2010)

70% (2014)

58% (2015)

72% (2003)

67% (2013)

60% (2012)

0% (2014)

57% (2011)

0% (2011)

70% (2013)

30% (2008)