35% (2001)

15% (2009)

40% (2012)

12% (1998)

0% (2001)

37% (1997)

67% (2010)

76% (2017)

0% (2011)

20% (2012)

0% (2010)

0% (2006)

0% (2013)

82% (2011)

0% (2000)

0% (2005)

30% (2007)

30% (2011)

0% (2009)

75% (2000)