79% (2003)

67% (1984)

70% (1996)

55% (2002)

82% (2006)

51% (2004)

50% (2006)

60% (2010)

58% (2005)

64% (2011)

74% (2010)

53% (2003)

45% (2013)

100% (2012)

50% (2006)

10% (2009)

0% (1970)

72% (2011)

28% (2009)

0% (2011)