56% (1994)

53% (1978)

48% (1997)

72% (1989)

71% (2001)

62% (1982)

54% (1979)

68% (1986)

63% (2000)

57% (1990)

84% (1992)

90% (2016)

73% (1993)

35% (1992)

42% (1996)

55% (1980)

58% (2003)

32% (1989)

55% (2003)

40% (1981)