There is already one at 18K in the spreadsheet. When I look at the VIN graph I see a stepwise change every week or so. Today I see a new step to 18K, 4 days after the step to 16K, and 7 days after the step to 15K. I interpret that as being at 3K/week and going up.
Seems promising -- this may suggest they are trending above 2000. (Not sure I'm ready to make the leap to 3000 yet though