43% (1994)

100% (1997)

30% (1994)

75% (1991)

0% (1991)

47% (1998)

42% (1993)

43% (1992)

100% (1992)

63% (1998)

42% (1994)

50% (1990)

45% (1995)

43% (1993)

30% (1997)

24% (1991)

50% (1997)

66% (2001)

40% (1991)

48% (1990)