Using 1 population approximation:
1 Tatar_Kazan_Kaybitskiy @ 5,640617
2 Tatar_Mishar_Bashkiria @ 5,934263
3 Tatar_Kazan_Eastern @ 6,022782
4 Tatar_Kazan_Zelenodolskiy @ 6,411286
5 Tatar_Kazan_Tet_Buinskiy @ 6,819829
6 Tatar_Kazan_Apastovskiy @ 7,109916
7 Tatar_Mishar_South_West @ 8,408804
8 Tatar_Mishar_Nizhniy @ 8,641761
9 Tatar_Mishar_Tatarstan @ 8,797388
10 Chuvash_Anat_Enchi @ 9,364468
11 Bashkir_North @ 10,172901
12 Chuvash_Center @ 10,176393
13 Chuvash_Viryal @ 11,086222
14 Tatar_Lithuanian @ 11,490159
15 Komi_Zyryan_SW @ 13,233606
16 Tatar_Perm @ 14,459768
17 Russian_Baykal @ 14,500512
18 Russian_Vyatka_NE @ 14,690832
19 Russian_Ural_West @ 16,150036
20 Russian_Yarensk @ 16,260666
21 Komi_Izhma @ 16,845543
22 Tatar_Crimean_Steppe @ 17,303458
23 Russian_Siberia @ 17,585449
24 Russian_Ural_East @ 17,661863
25 Bashkir_South @ 17,904971
26 Moksha @ 18,25783
27 Russian_Vyatka @ 18,602723
28 Russian_Tatarstan_Arsk @ 18,904671
29 Erzya @ 19,02851
30 Russian_Solvychegodsk @ 19,047438
31 Mari @ 19,188844
32 Udmurt @ 20,011892
33 Russian_Tobol_Kerzhak @ 20,290267
34 Russian_Vologda @ 20,722358
35 Russian_Vetluga @ 20,918739
36 Czech @ 21,040042
37 Hungarian @ 21,075463
38 Russian_Tambov @ 21,338356
39 Russian_Saratov @ 21,517493
40 Russian_North_Dvina @ 21,564281
41 Russian_Meshtchyora @ 21,630179
42 Russian_Uglich @ 21,702717
43 Russian_HGDP @ 21,731274
44 Moldavian @ 21,784143
45 Russian_Lipetsk_Voronezh @ 21,874938
46 Russian_Don @ 21,942257
47 Slovak @ 22,090169
48 Ukrainian_Galichina @ 22,199071
49 Russian_Mezen_Pinega @ 22,38328
50 Russian_Arzamas @ 22,445343