0% (1951)

61% (2000)

0% (1960)

50% (2003)

0% (1997)

0% (1990)

0% (1984)

0% (1991)

70% (1983)

0% (1999)

69% (1985)

57% (1998)

50% (1988)

0% (1989)

67% (1992)

0% (1979)

61% (2000)

85% (1981)

67% (1984)

50% (1972)