65% (1996)

59% (1996)

65% (1995)

61% (1998)

61% (1997)

66% (1997)

77% (1996)

58% (1996)

48% (1996)

60% (1997)

53% (1997)

51% (1995)

62% (1996)

35% (1996)

53% (1997)

69% (1996)

53% (1996)

61% (1996)

64% (1997)

59% (1999)