You appear to have gotten a set of usage stats which is from gen 6.I was looking up usage stats and viability rankings for UU, and found the usage stats for February: http://www.smogon.com/stats/2017-02/uu-1760.txt and the viability ranking thread: http://www.smogon.com/forums/threads/sm-uu-viability-ranking-thread.3595093/
I wanted to know if one of those is incorrect or outdated because I see that the top 3 in usage rankings are all either not on the tier list or are in D rank. Does anyone know why this is?
Edit: Just wanted to add that I am very new to the scene so I don't know much. Sorry for any ignorance.
These are the latest 1630 usage stats from smuu: http://www.smogon.com/stats/2017-02/gen7uu-1630.txt
EDIT: Also, don't worry about it. Welcome to UU! :)