序号	1 To 18records	19 To 36records	37 To 54records	55 To 72records	73 To 90records	average
1	1.26	-3.06	-3.87	3.14	-5.59	-1.62
2	31.73	-4.17	2.78	-7.79	-1.49	4.21
3	1.08	-7.22	2.59	-9.28	-3.85	-3.34
4	6.14	-1.62	-1.62	21.10	4.31	5.66
5	-2.78	23.19	-1.64	9.58	-1.08	5.45
6	-1.08	-2.87	0.93	1.19	-1.07	-0.58
7	1.34	-1.57	-4.66	5.75	-1.45	-0.12
8	1.94	1.05	2.14	10.14	-1.61	2.73
9	-0.14	-0.90	-5.38	8.66	-0.49	0.35
10	-0.07	4.46	2.03	-3.43	33.25	7.25
11	-2.24	5.69	3.69	7.85	-4.68	2.06
12	-0.88	-3.64	-2.30	15.56	-4.18	0.91
13	-1.99	33.04	0.56	-5.76	-3.07	4.56
14	-3.52	-4.27	9.32	-0.10	-0.52	0.18
15	0.56	0.40	19.98	-3.02	-0.32	3.52
16	-1.08	0.14	-6.17	-0.75	-0.99	-1.77
17	1.30	6.01	4.37	-2.90	5.50	2.86
18	0.34	26.36	-2.58	4.42	-1.90	5.33