33% (1996)

51% (1995)

50% (2002)

20% (1996)

50% (1997)

0% (1999)

48% (1999)

25% (1994)

40% (1990)

74% (1993)

47% (1994)

55% (1991)

86% (1991)

35% (1995)

60% (1995)

47% (2000)

85% (2000)

66% (1995)

49% (1992)

70% (2002)