0% (1997)

0% (1976)

45% (2001)

0% (1982)

45% (1983)

80% (1980)

38% (1971)

57% (2002)

20% (1984)

53% (2006)

50% (1972)

0% (1968)

55% (1975)

60% (1975)

50% (1977)

15% (2004)

0% (1967)

50% (2003)

10% (1991)

0% (1986)