45% (1995)

44% (1997)

52% (1995)

67% (1995)

42% (1994)

37% (2001)

40% (1994)

43% (1999)

60% (1993)

74% (1994)

22% (1989)

59% (1992)

33% (1998)

38% (1997)

32% (1993)

45% (1997)

45% (1995)

48% (1995)

48% (1998)

49% (1994)