61% (1999)

37% (1998)

24% (1996)

43% (1998)

49% (1999)

42% (1998)

25% (1996)

48% (1995)

29% (1998)

43% (1999)

47% (1999)

44% (1999)

42% (1999)

44% (1996)

40% (1999)

0% (1998)

40% (1997)

34% (1997)

34% (1996)

61% (1998)