28% (1994)

51% (1997)

55% (1995)

49% (1995)

43% (2000)

47% (1995)

45% (1993)

39% (1995)

36% (1995)

60% (1999)

40% (1996)

49% (1996)

35% (1996)

23% (1996)

38% (1994)

32% (1992)

43% (1994)

10% (1995)

46% (1995)

40% (1996)