28% (1994)

72% (1995)

80% (1994)

40% (1995)

20% (1996)

49% (1998)

80% (1994)

60% (1997)

70% (1993)

50% (1999)

0% (1994)

0% (1996)

70% (1994)

0% (1998)

74% (2006)

90% (1998)

60% (1978)

0% (2000)

38% (1994)

40% (1996)