64% (1986)

60% (1998)

0% (2001)

0% (1986)

10% (2002)

40% (2000)

79% (1987)

0% (1970)

0% (1982)

0% (1965)

10% (1986)

50% (1964)

58% (1961)

40% (1996)

0% (1993)

0% (1992)

0% (1991)

0% (1989)

0% (1990)