The jump from the monthly summer average appears to be mostly related to the ID.3 rollout. It would be nice if the 10k/month is sustained but it does not seem likely.
Norway is ~ 1/60 the population of the USA so if the USA was as progressive as Norway there would have been ~ 600k EV sales here in September.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
2018 Tesla Model 3 LR, Delivered 6/2018