47% (1990)

60% (1993)

55% (1982)

0% (1996)

30% (2008)

71% (1974)

60% (1972)

50% (2006)

0% (1989)

0% (1972)

60% (1974)

72% (1994)

0% (1996)

0% (1995)

0% (1983)

50% (1986)

0% (1965)

50% (1985)

0% (1965)

61% (1984)