74% (1995)

20% (2015)

20% (2017)

0% (2007)

20% (1993)

64% (1988)

20% (2006)

20% (2005)

20% (1988)

47% (2013)

20% (2003)

20% (1997)

15% (2000)

30% (2016)

20% (2001)

20% (1988)

80% (2015)

0% (2010)

20% (1994)

40% (1989)