序号	1 To 17records	18 To 34records	35 To 51records	52 To 68records	69 To 85records	average
1	10.76	3.05	18.74	-7.12	11.83	7.45
2	24.50	36.38	90.18	21.10	37.93	42.02
3	4.38	-36.48	10.29	10.04	91.68	15.98
4	3.16	14.43	17.55	-9.82	4.02	5.87
5	33.28	13.62	52.75	29.42	16.93	29.20
6	13.22	1.77	1.27	-8.94	10.13	3.49
7	16.04	1.32	9.20	33.70	12.55	14.56
8	-22.46	-9.38	-35.20	18.85	7.03	-8.23
9	4.78	10.37	12.70	20.89	26.99	15.15
10	35.11	29.21	16.46	158.84	-14.91	44.94
11	4.03	1.59	28.80	70.69	53.68	31.76
12	26.81	5.44	10.67	21.18	11.79	15.18
13	59.61	-22.98	38.83	30.86	14.16	24.10
14	-8.60	-0.56	33.30	-24.35	13.45	2.65
15	30.79	5.12	2.35	56.31	5.53	20.02
16	9.12	16.27	10.04	4.43	1.63	8.30
17	-1.72	6.48	27.83	-32.94	8.24	1.58