quantconnect--lean/Data/future/usa/margins/NG.csv

1	date	initial	maintenance
2	20090112	7150	6500
3	20090130	6325	5750
4	20090226	3300	3000
5	20090302	5500	5000
6	20090330	4675	4250
7	20090429	5500	5000
8	20090505	5225	4750
9	20090526	4950	4500
10	20090617	4950	4500
11	20090619	5500	5000
12	20090624	5225	4750
13	20090821	4950	4500
14	20091014	5500	5000
15	20100319	4950	4500
16	20100723	4400	4000
17	20100823	3025	2750
18	20110114	3850	3500
19	20110408	3300	3000
20	20110429	2970	2700
21	20110725	3025	2750
22	20111010	2750	2500
23	20120117	2310	2100
24	20120213	2090	1900
25	20120709	2530	2300
26	20120807	2750	2500
27	20121120	2475	2250
28	20130129	2310	2100
29	20130416	2090	1900
30	20130507	2585	2350
31	20130618	1815	1650
32	20130729	1760	1600
33	20130903	2310	2100
34	20131227	1485	1350
35	20140103	2530	2300
36	20140117	1870	1700
37	20140124	2750	2500
38	20140127	3300	3000
39	20140129	3960	3600
40	20140131	5005	4550
41	20140205	5500	5000
42	20140220	6050	5500
43	20140228	5225	4750
44	20140307	4400	4000
45	20140314	3300	3000
46	20140421	3135	2850
47	20140530	2805	2550
48	20140613	3080	2800
49	20140729	2502.5	2275
50	20140926	2981	2710
51	20141107	3410	3100
52	20141117	1760	1600
53	20141118	4015	3650
54	20141202	4455	4050
55	20141229	2090	1900
56	20150109	2310	2100
57	20150116	2530	2300
58	20150130	4235	3850
59	20150219	3520	3200
60	20150320	2750	2500
61	20150402	2200	2000
62	20150522	1980	1800
63	20150710	2062.5	1875
64	20150729	2035	1850
65	20160223	2090	1900
66	20160411	1815	1650