Cars.com reports that large SUVs posted for sale by owner have risen dramatically over the last several years and now make up a larger portion of the total number of ads listed for sale by owner.

The increase in large SUVs for sale by owner on Cars.com was calculated by taking a look at the most popular large SUVs on the market, like the Chevrolet Suburban and GMC Yukon, and tracking their listings as a percentage of the total number of Sell It Yourself listings on Cars.com. While the total number of people selling their cars themselves has increased significantly over the last several years, the amount of SUVs posted for sale by owner has outpaced the overall growth of for sale by owner listings.

Since March of this year, SUV postings have increased more than 14 percent and are up a staggering 40 percent from March 2003.

High fuel cost has been the primary factor driving the spike in consumer postings of large SUVs over the past several years. As the number of SUVs for sale rises, the number of consumers posting more fuel-efficient models, like the Honda Civic, continues to decrease. Though not as dramatic as the increase in SUV listings, the number of more fuel-efficient vehicles listed for sale by owner on Cars.com has decreased by 6 percent since March of this year and 23 percent since March 2003.