Meaningless numbers. Current production is of 1'000 vehicles per month. It's still not produced in high volumes, they need to ramp up production.
I can assure you this is going to sell like hotcakes (especially as Toyota offers a 1 million kilometers warranty, good luck driving a tesla even for a third without having to change the battery) and there's no shortage of demand (it's Toyota afterall).
Toyota has lots of jobs and industry and know-how built around the internal combustion engine --- and therein lies their concern.