The individual sales values was a way to see in brief the RPD and the tendency for sizes or for subscriptions or for US x non-US (for taxes) sales. Not worth the time, especially when I think of the time to track a 8c sale in IS or even the many subs sales in DT and so forth.
The number of times each image sold in each was useful to see the most succesful images and would also serve to see the type of image that works better in each site - never got any real tendency except maybe for my raster illustrations that sell well in FT more than elsewhere.
This year actually I didn't do much for sales at all, didn't even uploaded much to Alamy or Zazzle, but these are things that I plan to focus on. I don't want to produce microstock-oriented images - this was fun as a learning experience. I prefer to concentrate on my travel images and the potential they have in the editorial market. I have observed an increasing interest in images of Rio because of the World Cup and the Olympics. This is something more pleasant in terms of the hobby side of photography, and hopefully more profitable and rewarding in the business side.
And yes, I feel free.