58% (1997)

59% (1995)

60% (1998)

48% (1998)

47% (1998)

55% (1997)

65% (2000)

54% (1993)

31% (1994)

63% (2001)

36% (2022)

72% (1987)

37% (1994)

35% (1987)

38% (1992)

75% (1987)

49% (1992)

52% (2001)

50% (1998)

32% (1992)