60% (1951)

80% (1966)

82% (2002)

0% (1953)

40% (1996)

43% (1979)

65% (1954)

73% (1983)

42% (1966)

40% (1972)

70% (1969)

50% (1959)

60% (1966)

0% (1971)

50% (1962)

75% (1984)

68% (1978)

0% (1999)

0% (2002)

0% (2005)