Home prices surged the most on the record in the third quarter, according to a report Tuesday from the Federal Housing Finance Agency.

With record-low mortgage rates fueling demand for housing, prices jumped 3.1% compared to the prior quarter. That was the biggest gain in records dating to 1991, according to FHFA.

Compared to 2019, prices were up 7.8% in the three months through September, the biggest jump since 2006.

The housing market has been booming during the pandemic in the U.S., with cheaper borrowing costs and the desire for more space to spread out fueling a surge in purchases.

Prices for homes have soared across the U.S. despite the economic uncertainty from Covid-19. The gains have been driven in part by low inventory of houses for sales.

In a separate report on Tuesday, the S&P CoreLogic Case-Shiller index of values in 20 of the largest metropolitan areas climbed 6.6% from a year earlier. That beat expectations and was the biggest gain since 2014.

The pandemic temporarily froze the real estate market in March, but housing has rebounded to bolster the broader economy. While sales would typically slow down this time of year, demand has remained strong as buyers look to take advantage of low rates.

“The delayed spring homebuying season fueled sales well into October and past the time when they would normally begin to slow down,” said George Ratiu, an economist at Realtor.com “Heading into winter, demand continues to be strong.”