70% (1994)

40% (2003)

70% (1967)

30% (1961)

0% (1970)

50% (1990)

55% (1959)

60% (1962)

56% (1964)

60% (1964)

80% (1961)

0% (1992)

35% (1968)

50% (1953)

70% (1966)

48% (1970)

68% (1991)

65% (1989)

50% (1967)

0% (1969)