And still there were survivors
Amazing.
I picked one camp off your list.
Gross Rosen. A total of 40000 people died there, and not all were Jewish, but lets say all were Jewish..
40,000 / 1095 = 37 Jews per day. Long ways from your 228 per day per camp number..
Sauce;
https://www.yadvashem.org/odot_pdf/Microsoft%20Word%20-%206320.pdf