57% (1994)

40% (1992)

0% (1992)

54% (2000)

32% (1998)

17% (1999)

60% (1993)

67% (2001)

30% (1994)

57% (2000)

50% (1992)

28% (1999)

40% (1993)

50% (1991)

60% (1997)

50% (1993)

51% (2001)

40% (1990)

0% (1999)

63% (1997)