This post is part of the special series Vehicle Sales 1976-2010.
The main factor affecting domestic vehicle sales is the market size. The market for automobiles consists of the personal market and the corporate and public-sector markets. I decided that the best way to measure the market size was to look at the number of licensed drivers and the number of potential drivers. As previously mentioned in the introduction to the series, potential drivers are people age 16 and older. The number of licensed drivers was taken from numbers published by the FHWA. In order for the domestic vehicle fleet to increase we must have an increase in the number of drivers, an increase in automobile ownership, or a combination of the two.
|Number of residents over age 16 and % of residents age 15 or under|
|Drivers as a % of population and vehicles per driver|