68% (1992)

39% (1997)

49% (1994)

56% (1996)

40% (1995)

46% (1996)

53% (1999)

40% (1995)

62% (1996)

45% (1996)

43% (1995)

0% (1994)

52% (1992)

50% (1994)

45% (1996)

42% (1995)

30% (1999)

50% (2001)

60% (2001)

33% (1998)