. 2022 Feb 17;19(4):2321. doi: 10.3390/ijerph19042321
© 2022 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Figure 3.
Vehicle sales in the U.S. from 2008 to 2017.