Total revenue in the U.S. car rental market is expected to reach $27.106 billion in 2015, according to data published annually by Auto Rental News. This represents a gain of nearly $1.1 billion compared with 2014’s total revenue of $26.009 billion.

In 2015, average total cars in service in the U.S. grew to 2.18 million, from nearly 2.07 million in 2014. This translates to industry-wide revenue per unit, per month (RPU) of $1,035, slightly lower than the RPU in the previous four years of $1,048 to $1,060.

“This year was marked by one of the largest fleet turnovers in recent history, which put downward pressure on rates and used car values,” said Chris Brown, executive editor of Auto Rental News. “With this in the rearview mirror, rental fleets seem to be in line with demand, which bodes well for the coming year.”