Notice a lot of used Frontiers with low miles.

I have noticed a lot of new model Frontiers for sale with low miles. I am wondering if these are coming off lease or maybe were rentals? mileage is usually less than 20k for a 22 or 23 model. Any thoughts?

EDIT: Thanks for all the feedback. It seems these must be coming off a 1 year lease like multiple people said. Looking seriously at picking one up this year. I cannot see spending 10k more for a Tacoma with a crappy 4 banger turbo and a transmission that blows up.