Internet advertising revenues in the U.S. totaled $15 billion in 2015’s third quarter, signaling the highest quarter on record, according to findings released today by the Interactive Advertising Bureau.

These record revenues reveal a growth of five percent from 2015’s second quarter, and a massive 23 percent uptick in Internet ad spends during the same period in 2014, also a record at the time.

The findings arrived in the IAB’s latest Internet Advertising Report, a quarterly estimate of U.S. interactive advertising revenues. That report is compiled from data given to the IAB from companies that sell Internet ads.

According to the IAB, these record figures mark the highest quarter since the research organization began tracking this data in 1996.

“These landmark figures confirm marketers’ confidence in using digital to reach consumers,” said IAB president and CEO Randall Rothenberg in a statement.

A report released yesterday by Interpublic research firm Magna Global claimed U.S. ad gains this year were “entirely driven” by digital ad sales, and predicted that digital ads would see double-digit gains again next year, jumping 14.6 percent.