72% (2001)

52% (1996)

88% (2014)

65% (2003)

76% (2009)

50% (2011)

84% (2009)

75% (2011)

50% (2006)

42% (2005)

71% (2002)

20% (2015)

100% (1997)

60% (1996)

0% (1970)

80% (1998)

75% (2002)