61% (2011)

70% (2012)

62% (2009)

68% (2015)

63% (2007)

62% (2015)

54% (1981)

100% (2017)

60% (2003)

62% (2012)

20% (2015)

78% (2011)

66% (2015)

0% (2008)

59% (2004)

80% (2004)

0% (1976)

52% (2005)

0% (2014)

0% (2016)