72% (2014)

49% (2003)

40% (2005)

50% (2008)

20% (1997)

20% (1996)

20% (2000)

37% (2002)

20% (1999)

0% (2007)

20% (2000)

45% (2007)

20% (2016)

20% (1998)

20% (2002)

70% (1995)

20% (2004)

0% (2011)

20% (1993)