Yes, starting from mid BoB.
Germany was also supplying fighters for their allies, not that they did some stellar job doing it.
Agreed.
They had a lot of area to cover, so the massive production in 1944 didnt really materialise into a big force to attack the Allied bombers.
If you can believe it, Luftflotte Reich was allocated just 20% of German fighter production in early 1944 !
On the 8th August 1944 Milch wrote to Kriepe, and demanded it be increased to 50%
There were also definetly a lot of "missing" aircraft, US investigators in 1945 post-war concluded after interviewing various senior
Germans that Speer had been including repaired/refitted/upgraded airframes in the "new aircraft" production figures,
there was also some discussion that due to poor build quality in 1944, together with problems in distribution, that
a very large portion of "new" aircraft never made it to the operational units, for example because some were
so bad they ended up getting cannibalised for parts to repair other planes, and lots being damaged in delivery
to airfields with bomb damage to runways and lots of "ferry pilots" not being up to the job and fluffing the landings and so on,
all leading to tremendous wastage.
German aircraft production early war was (as has been stated already) also quite low.