Fatshark is tracking quite a bit of data: Developer Update - February 7 - #12 by Fatshark_Hedge
However, they have never shared this with the community and I think it is safe to assume that it will never be shared with. There might be different reasons for this, ranging from difficulties of proper presentation up to avoidance of reaching wrong conclusions. Because if you are not used to evaluate large amounts of data, you can make mistakes quite easily. A random example of such a thing would be a low pickrate misinterpreted as weak while it might be extremely strong to busted but difficult to perform/apply.
As such there is no choice as to go with proper explanation. Fatshark in the meantime will do the statistical analysis. And I am willing to bet money that both , a horizontal as well as a vertical analysis of the stats shows that we currently have some very busted options to chose from which are in dire need of a nerf.