30% (2000)

36% (2009)

20% (2007)

60% (2004)

20% (2017)

10% (2012)

30% (2014)

40% (2008)

30% (2002)

0% (2006)

40% (2000)

28% (2006)

30% (2008)

40% (2004)

23% (2007)

20% (2007)

10% (2011)

40% (2006)

0% (2010)

10% (2005)