61% (1999)

37% (1998)

49% (1999)

40% (1999)

25% (1996)

42% (1999)

43% (1998)

36% (1997)

42% (1998)

44% (1999)

43% (1999)

48% (1995)

10% (1996)

30% (2000)

40% (1997)

47% (1999)

0% (1999)

43% (1995)

61% (1998)

34% (1997)