Beijing AQI Months Ranked By Low

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Rank	Date	Average	High	Low	Median	Lowest High	Highest Low	Missing
1	09/01/10	186.70	470	4	177.5	84	254	252
2	09/01/15	103.12	256	4	87	53	167	3
3	09/01/12	116.61	288	4	119	21	177	8
4	10/01/15	125.00	405	4	97	38	326	8
5	06/01/12	158.80	388	4	166	61	183	12
6	12/01/15	208.86	588	4	183	42	460	10
7	04/01/15	146.94	646	4	157	84	185	9
8	03/01/15	148.01	368	8	160	55	226	49
9	08/01/11	170.58	391	8	174	124	243	174
10	10/01/12	150.13	464	8	151	60	276	5
11	07/01/10	186.71	360	8	181.5	127	209	0
12	09/01/14	136.51	279	8	155	74	171	20
13	01/01/11	101.47	336	8	76	70	156	72
14	08/01/14	127.60	259	8	149	89	175	11
15	10/01/10	176.27	522	8	160	53	333	2
16	06/01/15	115.51	308	8	117	76	162	18
17	11/01/14	159.76	514	8	153	46	340	14
18	11/01/13	144.41	430	8	145.5	53	245	2
19	09/01/11	155.41	424	12	154	102	231	1
20	04/01/11	151.67	329	12	165	110	202	184
21	03/01/12	155.68	438	12	162	105	242	4
22	11/01/11	171.56	436	12	167	154	243	5
23	08/01/12	148.01	352	12	157	72	220	121
24	11/01/10	191.82	545	12	171	117	349	56
25	03/01/11	113.22	444	12	78	63	275	119
26	10/01/11	198.26	541	12	179	93	319	128
27	06/01/14	126.68	275	13	137	99	172	18
28	03/01/14	166.11	477	13	166	63	240	2
29	08/01/15	105.87	195	13	99	74	164	1
30	07/01/15	126.55	201	13	140.5	93	157	2
31	03/01/13	182.51	527	13	176	36	254	127
32	10/01/14	197.97	481	13	176	53	384	1
33	02/01/14	225.35	598	13	191	59	413	3
34	04/01/13	124.37	310	16	133	62	188	2
35	02/01/13	174.64	521	16	162	79	295	20
36	08/01/10	164.30	407	17	165	124	257	68
37	12/01/14	129.97	463	17	92	57	230	28
38	04/01/12	149.31	362	17	156	91	238	1
39	04/01/14	164.56	553	17	167	134	193	3
40	02/01/15	151.83	438	17	157	63	253	6
41	02/01/12	140.87	420	17	153.5	76	223	6
42	05/01/10	153.73	364	17	161	115	181	7
43	01/01/15	162.45	545	21	166.5	70	261	6
44	12/01/13	156.66	487	21	144	63	251	20
45	03/01/10	161.40	687	21	158	139	245	35
46	05/01/12	157.42	362	21	166	119	196	53
47	11/01/15	184.19	609	21	167	76	295	0
48	08/01/13	130.34	258	21	147	82	172	9
49	05/01/11	131.47	314	21	142	87	174	32
50	04/01/10	141.20	426	21	144	80	227	2
51	10/01/13	166.81	438	21	158	124	319	6
52	01/01/13	246.32	755	23	206	79	390	40
53	12/01/12	165.45	420	23	164	55	241	162
54	06/01/11	170.52	473	25	172	95	227	9
55	12/01/10	152.40	576	25	117	76	283	0
56	05/01/15	127.01	311	25	137	89	160	4
57	02/01/11	207.88	562	25	170.5	105	438	0
58	11/01/12	143.65	463	25	139	61	199	23
59	07/01/14	152.45	353	25	162	70	200	3
60	02/01/10	159.71	817	25	162	72	268	1
61	01/01/14	175.87	613	25	168	61	269	3
62	01/01/12	175.66	826	25	161	76	398	74
63	09/01/13	155.66	348	25	164	89	257	3
64	12/01/11	165.79	514	29	158	61	298	1
65	07/01/12	147.86	368	29	158.5	110	210	56
66	05/01/14	142.27	321	29	156	91	163	2
67	07/01/11	174.58	427	29	167	112	256	3
68	06/01/13	177.04	477	33	177	89	192	32
69	07/01/13	138.27	266	33	153	99	170	7
70	05/01/13	157.67	370	38	160.5	156	188	36
71	01/01/10	150.42	490	38	134	84	306	91
72	06/01/10	176.74	302	42	174	139	200	155