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	Team	Rating	Sigma	Upper_Bound	Lower_Bound
1	Carolina	3037.506357	309.188616	3655.883589	2419.129124
2	NewEngland	2537.909540	245.787285	3029.484110	2046.334969
3	Arizona	2515.485032	229.839471	2975.163975	2055.806090
4	Denver	2354.789674	210.041472	2774.872618	1934.706730
5	Pittsburgh	2331.301268	195.740541	2722.782350	1939.820186
6	GreenBay	2326.764083	215.090813	2756.945710	1896.582456
7	KansasCity	2320.221032	220.652679	2761.526390	1878.915675
8	Cincinnati	2312.373999	233.270477	2778.914953	1845.833045
9	Seattle	2285.587420	219.425330	2724.438080	1846.736761
10	Minnesota	2244.714147	216.701178	2678.116503	1811.311791
11	Houston	2096.095266	206.764892	2509.625051	1682.565481
12	Washington	2076.965518	209.295816	2495.557151	1658.373886
13	NewYorkJ	2037.154987	211.341229	2459.837445	1614.472528
14	Indianapolis	1996.516759	202.582319	2401.681397	1591.352122
15	StLouis	1968.227160	195.828977	2359.885113	1576.569207
16	Oakland	1963.038122	202.085445	2367.209011	1558.867233
17	Philadelphia	1957.762480	199.107163	2355.976807	1559.548153
18	NewYorkG	1926.768262	213.845554	2354.459371	1499.077154
19	Buffalo	1895.418890	205.354678	2306.128246	1484.709535
20	Detroit	1883.743729	207.050273	2297.844275	1469.643183
21	NewOrleans	1833.862949	200.040891	2233.944731	1433.781167
22	TampaBay	1815.885178	201.169636	2218.224450	1413.545905
23	Atlanta	1792.387639	219.518107	2231.423852	1353.351425
24	Chicago	1790.319382	200.117479	2190.554340	1390.084424
25	Cleveland	1683.098710	218.810078	2120.718865	1245.478554
26	SanFrancisco	1676.361165	213.319589	2103.000344	1249.721987
27	Dallas	1644.928793	221.285409	2087.499612	1202.357974
28	SanDiego	1629.867420	214.196713	2058.260847	1201.473994
29	Baltimore	1629.665787	205.744190	2041.154167	1218.177407
30	Jacksonville	1628.690276	193.720513	2016.131302	1241.249251
31	Miami	1591.939978	198.926289	1989.792556	1194.087400
32	Tennessee	1484.757177	220.480147	1925.717472	1043.796882

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).