That page is a bit misleading. That's total consumption of aviation gasoline, which is what powers aircraft with piston-based engines. Aircraft with jet engines use a distinctly different fuel aptly called jet fuel, which isn't accounted for on that gasoline page.

If you go to this[1] page, it buckets all aviation into a category, and shows it accounts for 9.4% of US transportation energy consumption. Still significantly lower than the 54.5% that light-duty account for, but a substantially larger proportion than the gasoline page leads one to believe.

One thing to keep in mind for [1] is that it doesn't differentiate between consumer and commercial usage. And there are a lot of non-consumer vehicles that'd fall into it. A few examples likely to be large contributors to that category due to sheer volume and time on the road: last mile delivery vehicles, taxis, and police cruisers.

[1] https://www.eia.gov/energyexplained/use-of-energy/transporta...