This inventory graph is courtesy of Altos Research.
As of July 16th, inventory was at 391 thousand (7 day average), compared to 647 thousand the same week a year ago. That is a decline of 39.6%.
A week ago, inventory was at 373 thousand, and was down 43.0% YoY.
Seasonally, inventory has bottomed. Inventory was about 27.4% above the record low in early April.
Mike Simonsen discusses this data regularly on Youtube. Altos Research has also seen a significant pickup in price decreases, although still well below a normal rate for July.