62% (1985)

60% (1981)

60% (1985)

85% (1983)

30% (1962)

67% (1979)

57% (1992)

70% (1977)

70% (1987)

60% (1994)

48% (1984)

26% (1991)

53% (1982)

30% (2005)

50% (1986)

40% (1987)

70% (1988)

70% (1981)