25% (2009)

69% (1993)

71% (1990)

65% (1988)

0% (1982)

80% (1990)

40% (1997)

0% (1979)

0% (1981)

60% (1981)

50% (2004)

0% (1986)

55% (1999)

63% (2013)

0% (1984)

0% (1984)

60% (1986)

0% (2006)

0% (1978)

30% (1983)