LOL, if I had mod points I would award you a funny.
In the unlikely event you are serious, if all the cars in Norway were electric 100% of the failures would be electric cars.
I suspect you are interested in a better question about comparing failure rates. This requires knowing the number of each kind of car in Norway.
If all cars that had calls was 34,000, given the 13% proportion there were calls for 4420 EVs and 29,580 ICE cars. An unvetted search says there are 817,509 EVs and 2,099,935 ICE cars in Norway.
Dividing the failures by the total numbers and multiplying by 1000 yields a failure rate per 1000. In this case EVs under these Norwegian conditions had a failure rate of roughly 5.4 per thousand and ICE cars at 14 per thousand.
This of course is beside the point. Iâ(TM)ve owned both types of vehicles in Chicago when it was below -10F. If you keep you car charged and plugged in when not in use, the EV always works. ICE cars, preparation doesnâ(TM)t always work. In Norway people know how to prepare for the cold.