30% (2009)

15% (2009)

35% (2001)

30% (2007)

12% (1998)

30% (2011)

0% (2000)

37% (1997)

0% (2017)

67% (2010)

0% (2008)

70% (2015)

40% (2012)

60% (2013)

100% (2009)

0% (2013)

60% (2012)

20% (2012)

76% (2017)

0% (2004)