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	Team	Rating	Sigma	Upper_Bound	Lower_Bound
1	Carolina	2653.720269	270.964086	3195.648441	2111.792098
2	Arizona	2571.534841	219.112453	3009.759747	2133.309936
3	Denver	2413.525560	200.966903	2815.459366	2011.591754
4	NewEngland	2386.894162	227.330048	2841.554258	1932.234067
5	KansasCity	2341.268597	215.051408	2771.371414	1911.165781
6	Minnesota	2284.715549	208.613749	2701.943047	1867.488051
7	GreenBay	2277.670989	206.348661	2690.368312	1864.973666
8	Cincinnati	2239.942033	220.726200	2681.394434	1798.489633
9	Pittsburgh	2209.146625	185.269192	2579.685009	1838.608242
10	Seattle	2181.817593	206.398850	2594.615293	1769.019893
11	NewYorkJ	2148.837023	199.773114	2548.383250	1749.290796
12	Washington	2129.965808	200.378753	2530.723314	1729.208302
13	Houston	2115.684015	201.952337	2519.588688	1711.779342
14	StLouis	2050.898274	186.667006	2424.232286	1677.564261
15	Indianapolis	2026.219504	196.421116	2419.061735	1633.377272
16	Oakland	1996.977903	195.564470	2388.106842	1605.848963
17	Atlanta	1985.932390	206.352774	2398.637938	1573.226843
18	Buffalo	1936.040471	198.007805	2332.056082	1540.024860
19	Detroit	1928.349012	199.150973	2326.650959	1530.047066
20	Philadelphia	1909.791663	191.465474	2292.722610	1526.860716
21	NewYorkG	1887.813177	206.082756	2299.978689	1475.647665
22	NewOrleans	1876.145364	192.683720	2261.512804	1490.777925
23	Chicago	1850.818063	191.453921	2233.725904	1467.910222
24	Baltimore	1764.610487	193.525151	2151.660790	1377.560185
25	TampaBay	1754.749364	192.364369	2139.478103	1370.020626
26	Cleveland	1662.400881	213.352406	2089.105693	1235.696069
27	SanFrancisco	1629.016601	204.657548	2038.331697	1219.701506
28	Dallas	1597.767064	212.031270	2021.829604	1173.704524
29	SanDiego	1591.742171	206.389293	2004.520758	1178.963584
30	Jacksonville	1589.034597	187.060113	1963.154824	1214.914371
31	Miami	1563.298509	193.103547	1949.505604	1177.091414
32	Tennessee	1462.486280	214.606605	1891.699490	1033.273069

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).