72% (2001)

88% (2014)

52% (1996)

65% (2003)

50% (2011)

50% (2006)

84% (2009)

74% (2011)

75% (2009)

71% (2002)

42% (2005)

20% (2015)

60% (1996)

100% (1997)

80% (1998)

0% (1970)

75% (2002)