62% (2009)

61% (2011)

68% (2015)

63% (2007)

70% (2012)

20% (2015)

62% (2015)

60% (2003)

62% (2012)

54% (1981)

0% (2015)

80% (2014)

0% (2007)

60% (2006)

10% (2013)

52% (2005)

70% (2016)

0% (2008)

60% (2012)

67% (2010)