10% (1997)

29% (2000)

23% (1997)

57% (1993)

32% (1994)

32% (2005)

35% (1995)

36% (1994)

30% (1997)

60% (1996)

10% (2005)

0% (1994)

50% (2001)

10% (1995)

30% (1999)

0% (1993)

30% (1992)

67% (1997)

13% (1995)

13% (1996)