25% (2009)

71% (1990)

0% (1982)

69% (1993)

0% (2006)

40% (1997)

0% (1984)

80% (1990)

50% (2004)

63% (2013)

60% (1981)

55% (1999)

0% (1981)

0% (1979)

60% (1986)

30% (1983)

65% (1988)

0% (1986)

0% (1978)

0% (1983)