41% (1994)

58% (1973)

75% (1974)

48% (1982)

40% (2013)

42% (1982)

64% (1969)

42% (1987)

72% (1970)

59% (1974)

72% (1980)

70% (1977)

37% (1987)

49% (1976)

70% (1981)

54% (1980)

66% (1977)

58% (1987)

51% (1991)

70% (1996)