63% (2012)

30% (1995)

53% (1986)

0% (1998)

80% (1992)

60% (1993)

0% (2000)

80% (2014)

0% (1993)

55% (2010)

60% (1990)

45% (1997)

60% (1982)

0% (1969)

0% (1979)