30% (2020)

40% (1981)

0% (1990)

52% (2008)

10% (2004)

10% (1998)

86% (2015)

39% (2009)

0% (1995)

0% (1990)

40% (2011)

0% (1988)

0% (1982)

10% (1980)

35% (1986)

0% (1982)

0% (1989)

0% (1982)

0% (2003)

20% (1991)