61% (1999)

37% (1998)

42% (1998)

49% (1999)

42% (1999)

25% (1996)

36% (1997)

43% (1998)

61% (1998)

44% (1999)

43% (1999)

40% (1999)

32% (1998)

24% (1996)

0% (1998)

40% (1997)

34% (1997)

36% (1998)

48% (1995)

50% (1998)