45% (1994)

48% (1995)

49% (1991)

46% (1995)

30% (1995)

38% (2003)

33% (1997)

34% (1993)

41% (2004)

46% (1987)

38% (1995)

37% (1995)

60% (1995)

36% (1988)

43% (1991)

51% (1994)

48% (1995)

53% (1995)

31% (2001)

43% (1994)