10% (1979)

41% (1975)

0% (1973)

15% (1981)

58% (2009)

37% (2018)

47% (1986)

62% (1964)

40% (1981)

0% (1984)

48% (2000)

10% (1973)

20% (1985)

49% (1969)

60% (1963)

60% (1982)

20% (1981)

0% (1987)

61% (1970)

62% (2011)