65% (1996)

69% (1987)

70% (2000)

53% (1996)

44% (2000)

43% (1999)

55% (2000)

60% (1997)

56% (1998)

59% (2000)

45% (1997)

50% (1998)

52% (1995)

50% (1998)

43% (1998)

43% (1995)

43% (1995)

30% (1999)

53% (1997)

62% (1996)