Back in 1975, light trucks accounted for only a fifth of sales.

Even so, cars and trucks still account for nearly half of all urban smog.

Diesel buses and trucks account for about 10 percent of the miles driven in the state each day.

In January, he noted, light trucks accounted for more than 46 percent of all sales.

Today, light trucks account for about 40 percent of total sales, up from 30 percent two decades ago.

In 1975, light trucks accounted for only 19 percent of all automotive sales.

Light trucks accounted for the other third, at 120,274 units, down 6.6 percent from 129,315.

Cars and trucks account for about half that amount.

Nationally, light trucks account for more than half of all new vehicle sales, up from about a fifth in 1980.

Light trucks now account for 55.5 percent of new vehicle sales.