44% (1994)

47% (1995)

40% (1995)

38% (1995)

40% (1994)

44% (2011)

52% (1991)

47% (1991)

29% (2001)

32% (1997)

45% (1992)

47% (1987)

32% (1996)

34% (1993)

41% (1991)

47% (1995)

40% (2004)

39% (1996)

23% (1997)

30% (1995)