78% (2012)

60% (2005)

75% (2009)

66% (2010)

64% (2007)

63% (2004)

62% (2006)

62% (2012)

52% (2013)

71% (2008)

60% (2008)

54% (2006)

63% (2021)

20% (2014)

0% (1970)

45% (2007)

68% (2012)

0% (2006)

63% (2009)

0% (2001)