Well, this thread seems to have died somewhat! I am not resurrecting it out of vanity, but because I've found yet more information which has utterly confused me again. The Osprey book about the La-5/7 (see Amazon link at bottom) contains the following loss figures:
In July-August 1943 total Luftwaffe losses to all causes on the Eastern front are given as 2419, including 432 Fw 190s. This seems ridiculously inflated, but is another explanation possible? Could this be the total of all incidents of aircraft sustaining damage?
For a different period, July-August 1944, Khazanov and Medved say that JG 54 lost 115 aircraft to all causes and the Schlacht Geschwader lost 498. These figures seem much closer to the truth, at least if they are meant to be total losses. Can any forum members who have studied this area say if these numbers feel right?
http://www.amazon.com/La-5-Fw-190-Ea.../dp/1849084734