68% (2012)

47% (1988)

80% (2009)

87% (2014)

60% (2010)

80% (2008)

80% (2007)

90% (2003)

80% (2019)

80% (2016)

0% (1970)

0% (2011)

0% (2003)

95% (2014)

60% (2015)

0% (2017)

20% (2018)

0% (2010)

70% (2006)

0% (2012)