20% (2011)

72% (2014)

50% (2003)

42% (2002)

0% (1994)

20% (2002)

0% (2002)

45% (2007)

50% (2008)

0% (1993)

20% (2000)

0% (2011)

40% (1996)

20% (2016)

20% (1997)

40% (2005)

20% (2000)

50% (1996)

70% (1995)

0% (2001)