200 Watch - ETAs for GMS

Actually that doesn't hold true with this form of data for two reasons -

1. You tend to kill faster and gain more xp as you gain in levels, so your lower levels from further back in time would drop the average.
   
2. People tend to push harder during events and near a levelup, making more recent data more accurate indication of future progress.
   

That's why I only use a two week period. What you were getting three months ago isn't honestly relevant to your current progress due to the constantly changing variables.

my point was more that you cant just do this every day because a day isnt a long enough period of time to get something meaningful out of the data.