序号	1 To 17records	18 To 34records	35 To 51records	52 To 68records	69 To 85records	average
1	7.37	-18.28	-21.34	-10.45	-13.69	-11.28
2	45.48	-5.98	2.49	-1.55	-10.45	6.00
3	0.30	8.93	1.96	32.18	15.13	11.70
4	17.88	-5.06	14.29	6.78	29.03	12.58
5	16.00	-6.95	8.66	4.56	38.02	12.06
6	15.80	-5.53	-8.11	-44.10	33.23	-1.75
7	12.89	44.34	19.04	13.51	-7.33	16.49
8	13.07	-19.42	13.69	83.44	-5.37	17.08
9	19.00	23.89	5.23	24.45	18.51	18.22
10	2.82	34.83	8.41	-4.66	16.22	11.52
11	8.20	1.03	27.74	9.76	25.63	14.47
12	-11.81	38.35	23.21	-7.55	58.88	20.22
13	9.58	3.95	31.37	-13.14	21.54	10.66
14	2.71	9.96	46.23	71.22	10.97	28.22
15	17.61	-20.76	12.59	2.16	9.09	4.14
16	1.83	-15.15	7.81	29.63	21.46	9.12
17	-2.23	-25.67	32.32	-3.68	17.14	3.58