39% (1996)

60% (1996)

0% (1993)

0% (1995)

30% (1994)

0% (1993)

75% (1995)

50% (1996)

80% (1995)

50% (1994)

66% (1998)

0% (1994)

0% (1994)

50% (1994)

0% (1994)

70% (1994)

40% (1994)

0% (1995)

0% (1994)

60% (1995)