Fun with Production Numbers

I was wondering about how many AVEOs were produced each day for the 2011 model run. I recently found a black 2011 sedan on Denver cl with a vin 190057 d.o.m. 12-2010. My faithfull 2011, "greyman", with same d.o.m. has vin 189462 putting it 595 units behind the black sedan. Would it be accurate to assume they were made within ONE week of each other, and that they likely were shipped to north of San Jose on the same boat? Also, is there any estimate of the vins for the last batch of AVEOs shipped to USA before production ceased in S. Korea?