序号	1 To 21records	22 To 42records	43 To 63records	64 To 84records	85 To 105records	average
1	20.99	60.78	-3.04	17.56	11.26	21.51
2	-17.98	18.84	-61.45	72.45	11.62	4.70
3	9.78	1.03	47.24	-21.29	-10.04	5.34
4	2.59	1.78	21.88	57.45	14.31	19.60
5	15.61	2.88	15.90	7.97	-27.65	2.94
6	-13.98	-16.08	9.34	8.67	2.35	-1.94
7	-24.86	33.10	3.41	-1.48	7.26	3.49
8	-22.67	30.77	99.26	24.74	-4.01	25.62
9	4.44	16.75	26.33	2.42	20.85	14.16
10	-14.76	8.26	3.42	-34.18	25.16	-2.42
11	5.90	-4.55	-2.23	6.12	1.23	1.29
12	16.71	70.97	31.78	-18.56	-12.07	17.77
13	3.55	-3.00	117.05	0.34	1.80	23.95
14	52.45	4.27	4.34	32.60	1.21	18.97
15	3.88	16.81	-7.87	56.87	3.63	14.66
16	24.76	29.01	-21.42	35.36	2.64	14.07
17	-1.71	44.35	-26.66	10.20	-40.47	-2.86
18	-0.48	43.91	21.04	32.16	1.28	19.58
19	30.66	172.62	9.63	-15.35	5.10	40.53
20	-1.35	1.54	13.28	46.28	3.39	12.63
21	-17.66	39.52	14.59	25.10	5.25	13.36