序号	1 To 14records	15 To 28records	29 To 42records	43 To 56records	57 To 70records	average
1	4.85	-1.83	4.80	-1.41	87.96	18.87
2	9.58	5.88	9.97	14.53	29.85	13.96
3	-3.68	10.03	18.90	3.97	61.87	18.22
4	4.12	11.98	8.13	3.60	10.45	7.66
5	-6.68	21.51	11.54	-6.67	10.80	6.10
6	3.75	-10.15	10.41	31.81	52.12	17.59
7	3.50	10.60	14.90	8.17	67.34	20.90
8	-9.96	-5.74	22.71	31.58	94.47	26.61
9	2.21	-22.47	-3.63	15.16	22.68	2.79
10	-3.11	5.05	-4.07	46.17	22.81	13.37
11	6.62	4.99	3.47	75.84	31.34	24.45
12	1.15	2.46	17.70	19.81	13.55	10.93
13	17.51	-0.60	42.74	75.97	27.28	32.58
14	5.45	-12.02	22.17	27.87	40.53	16.80