50% (1993)

58% (1984)

59% (1985)

55% (1992)

64% (1984)

66% (1991)

44% (2009)

40% (1992)

54% (1989)

49% (1995)

59% (1986)

57% (1995)

42% (1989)

30% (1993)

26% (1995)

44% (1994)