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	Team	Rating	Sigma	Upper_Bound	Lower_Bound
1	Carolina	2669.868826	264.590529	3199.049884	2140.687768
2	Arizona	2460.621937	205.986078	2872.594093	2048.649780
3	Denver	2423.965321	197.964980	2819.895281	2028.035361
4	KansasCity	2378.937326	207.192955	2793.323236	1964.551415
5	Minnesota	2346.880208	199.143401	2745.167010	1948.593405
6	Seattle	2280.244423	195.487981	2671.220385	1889.268461
7	Cincinnati	2270.301089	213.477689	2697.256468	1843.345710
8	Pittsburgh	2227.350713	181.412173	2590.175059	1864.526367
9	GreenBay	2216.847576	197.192547	2611.232670	1822.462481
10	NewEngland	2208.715669	210.780117	2630.275903	1787.155435
11	Washington	2152.026232	195.399497	2542.825227	1761.227238
12	Houston	2138.305990	196.704678	2531.715346	1744.896635
13	NewYorkJ	2071.487522	190.200316	2451.888154	1691.086890
14	Indianapolis	2045.927514	191.950361	2429.828236	1662.026792
15	Buffalo	2012.030518	188.694389	2389.419297	1634.641739
16	Detroit	1980.108607	191.072776	2362.254160	1597.963054
17	Oakland	1965.820339	189.708424	2345.237186	1586.403491
18	StLouis	1964.857533	178.168945	2321.195423	1608.519643
19	Philadelphia	1961.615547	184.102213	2329.819972	1593.411121
20	NewOrleans	1939.191611	184.570918	2308.333447	1570.049776
21	Atlanta	1913.634885	196.323124	2306.281133	1520.988638
22	NewYorkG	1827.784279	196.836304	2221.456887	1434.111670
23	Chicago	1802.977708	184.304329	2171.586365	1434.369051
24	TampaBay	1746.605736	190.181799	2126.969335	1366.242137
25	Baltimore	1741.266536	188.704220	2118.674977	1363.858095
26	SanFrancisco	1732.419227	193.357417	2119.134061	1345.704393
27	Miami	1691.905938	183.119620	2058.145178	1325.666698
28	Cleveland	1638.267427	207.364240	2052.995907	1223.538946
29	SanDiego	1580.732076	203.124513	1986.981103	1174.483050
30	Dallas	1573.069221	206.096928	1985.263077	1160.875364
31	Jacksonville	1569.622458	182.928238	1935.478934	1203.765982
32	Tennessee	1438.964428	208.719387	1856.403202	1021.525653

Sigma is an expression of confidence in a team's rating. You can treat it as a measure of uncertainty in the rating value, so a lower value means we're more certain about a rating than a higher value.
Upper and lower bounds are a 95% confidence interval for the team's rating, meaning that their true skill rating lies somewhere between those two values (that's not an entirely accurate explanation of a confidence interval, but for our purposes it'll do).