81% (2011)

80% (2008)

55% (2013)

80% (1996)

30% (2012)

76% (2018)

74% (2014)

60% (2016)

50% (2005)

0% (2003)

0% (1991)

0% (2014)

70% (2009)

0% (2006)

0% (2018)

63% (1994)

57% (1993)

71% (2014)

83% (2018)

70% (2016)