Bruddah IZ
DA
You still arguing the merits of PCR test.It isn't latitude. Nearly every other state at your latitude did significantly better than LA.
Not do we see a general pattern of south = worse. Texas doesn't look worse than Oklahoma, for example. Arkansas isn't much different from Tennessee.
Waves sloshing in a pool might get you a good grade in English class. Big fat F for stats, though. Waaaaay too many individual events to blame it on random drift.
Try again. Why did LA do so poorly?