That shows the number of minor deviations per minute during the recorded flight... cell deviations aren't anything constant, it will fluctuate & it will depend on how much amps you command out from the battery pack.
Just looking at 1 or 2 flights say absolutely nothing... hundreds is needed to judge if it's any bad pattern regarding cell deviations with a single battery pack. And furthermore... this is minor deviations (up to 0,01v), it's perfectly normal & nothing to worry about. When you start to get deviations above 0,1v on a regular basis or when the battery is stressed (like very cold or hot ambient or in Sport mode) then you should start to think twice about using that battery for airborne tasks.