25% (2000)

15% (2008)

34% (2003)

37% (2008)

30% (2018)

0% (1984)

40% (2005)

10% (2011)

20% (2000)

0% (2012)

28% (2008)

60% (2006)

0% (2003)

30% (2007)

23% (2009)

31% (2004)

15% (2002)

40% (2006)

35% (2010)

0% (2008)