Group (shorter block length)	Number of scores in group	Mean	Variance
4	5309	1.32	0.378
5	26515	1.48	0.415
6	10592	1.60	0.435
7	44914	1.82	0.477
8	73682	1.86	0.490
9	54992	1.95	0.506
10	350857	2.11	0.544
11	311860	2.22	0.558
12	265356	2.29	0.566
13	299833	2.40	0.580
14	141150	2.46	0.601
15	210632	2.59	0.608
16	231183	2.68	0.630
17	193065	2.75	0.638
18	135284	2.85	0.648
19	120540	2.91	0.652
20	152676	2.97	0.674
21	213896	3.02	0.695
22	184562	3.16	0.698
23	154908	3.16	0.712
24	169185	3.32	0.713
25	186053	3.35	0.733
26	210387	3.45	0.747
27	221464	3.50	0.754
28	203609	3.55	0.769
29	196647	3.62	0.775
30	191255	3.67	0.774
31	223474	3.71	0.780
32	168321	3.80	0.786
33	200575	3.89	0.800
34	177384	3.95	0.808
35	159964	4.00	0.818
36	176952	4.04	0.811
37	155244	4.12	0.829
38	181050	4.21	0.844
39	136344	4.25	0.838
40	157469	4.29	0.849
41	139379	4.37	0.862
42	104650	4.42	0.882
43	87104	4.49	0.865
44	67122	4.54	0.874
45	59663	4.56	0.896
46	57079	4.71	0.899
47	47455	4.71	0.891
48	29225	4.76	0.905
49	34328	4.80	0.905
50	26758	4.81	0.913
51	27354	4.92	0.935
52	25974	4.99	0.940
53	23678	4.99	0.915
54	13162	5.05	0.936
55	8742	5.14	0.954