56% (1996)

68% (1992)

59% (1996)

29% (1996)

30% (1999)

50% (1997)

46% (1996)

67% (1999)

72% (1996)

35% (1995)

45% (1995)

50% (2001)

53% (1999)

49% (1994)

30% (1996)

73% (1994)

40% (1993)

40% (1998)

56% (1999)

52% (1992)