47% (1990)

50% (1985)

73% (1974)

0% (1972)

30% (2008)

50% (2006)

50% (1986)

55% (1982)

0% (1996)

72% (1994)

0% (1996)

0% (1965)

60% (1974)

50% (1997)

0% (1965)

0% (1995)

61% (1984)

60% (1993)

0% (1989)

0% (1985)