According to the tweet announcement by someone near the Waterloo plant, production on the Bolt EV has started, and they are currently producing 9 per hour.
With a little math, that works out to about 18,000 electric vehicles per year.
The tweet says they are looking to increase to 30 per hour, but likely that would wait until the demand picks up? If they could do 30 per hour, and added 2 more shifts so it was running 24 hours a day, they could pump out a LOT of Bolts!