78% (2016)

23% (2013)

58% (2005)

25% (2002)

43% (2001)

44% (2002)

0% (2004)

77% (2003)

69% (2004)

10% (2005)

62% (2012)

10% (2014)

42% (1999)

35% (2009)

48% (2010)

45% (1998)

26% (1998)

42% (2011)

33% (2014)

43% (2002)