30% (1990)

30% (1997)

44% (1997)

46% (1990)

52% (1990)

33% (1992)

52% (1996)

59% (1990)

47% (1993)

52% (1997)

59% (2003)

47% (1996)

35% (1997)

69% (1989)

0% (1991)

40% (1995)

52% (1995)

47% (1989)

48% (1998)

65% (2001)