That information from previous years isn't available on the WGFD site. The 2016 leftovers will be posted after the drawing happens in a couple weeks. Some people do save the list each year. I may have it, I will check when I get home tonight.
Check the "resident" preference point draw statistics. Find the units with a higher quota than applicants. They have them for the last several years and you can see a trend although they have had some tag cuts in the last couple years but seem to increasing a few this year. They also have this data for the doe tags. To get started look at the eastern quarter of the state to find your best chance at a leftover.