Excerpt from the database UP-base v.8 beta for "credit". The database contains 1671389 keys.
Tested on the frequency quoted in wordstat.yandex 05.05.2014g.
Base format csv (2 files) and txt (1 file)
In the database doubles, characters, initial and final double spaces.
To sample from a txt file by frequency in the archive there is a program Sortkey.
Other bases can be found in the "Information on the seller and its products."
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