0% (1996)

48% (1992)

52% (1997)

56% (1997)

58% (1998)

51% (2000)

57% (1998)

30% (1997)

40% (1998)

50% (1996)

50% (1996)

43% (1996)

54% (1998)

50% (1995)

37% (1991)

50% (1992)