The number of Americans using adblockers will grow over the next three months, according to a report released today by Digital Content Next, a trade group representing online publishers.

The study estimates that about a third of American consumers are “very likely or somewhat likely” to try adblockers in the next three months.

“We estimate about half of the ‘very likely’ responders and one quarter of the ‘somewhat likely’ responders — a net take rate of 9 percent — will opt out of advertising in the next three months,” DCN research director Rande Price said in a statement.

Sixteen percent of American Internet users, or 45 million people, blocked ads in the second quarter of this year, according to a widely cited study by Adobe and PageFair, a company that sells publishers tools to fight back against adblockers.

Digital Content Next’s members include publishers like ESPN, The Financial Times, The Daily Caller, and About.com. The group is only releasing the full report to its members, but here are some of the findings it’s sharing publicly:

— More than 70 percent [of respondents] dislike ads that expand over content or play with sound.
— 68 percent are concerned when ads track their behavior.
— 57 percent note their web pages load too slowly with ads.

“On a scale of one to ten, my concern is at a level eight or nine — our industry has ignored consumer concerns and now these same consumers are speaking up by installing ad blocking software,” Digital Content Next CEO Jason Kint said in a statement. “We need leaders across the industry to focus on providing better experiences, transparency, and controls that will solve this issue.”

DCN conducted 25 executive and consumer interviews and used an outside research firm to survey 1,000 American adults for the report.

The abridged version of the report also offers tips and suggestions for how publishers should be thinking about adblockers. In order to properly combat adblockers, DCN said outlets must improve “performance, privacy and security” to win back users’ trust:

While performance is most easily measured and solved, the other two areas have the ability to accelerate ad blocking in the marketplace. Fundamentally, ad blocking is driven by billions of dollars being invested in automation of advertising and related technologies without enough attention on the consumer. This area warrants the most attention. Industry ad tech associations like the IAB and NAI will need to play a role in developing practical solutions.

Kint was one of the panelists at an event Nieman Lab held in New York last week to discuss the impact of adblocking, and he highlighted many of these same concerns then.

What's the proper level of panic re adblocking? @jason_kint still says 8 out of 10. https://t.co/axtGr0aJ8k #nieman

— Shan Wang ☃ (@shansquared) December 2, 2015

@jason_kint do not violate the relationship between consumer and brand #Nieman #adblocks #nyu

— Fernanda Braune (@nandabraune) December 2, 2015

. @jason_kint: I tell our members, do whatever is best for your business. Everyone has their own circumstances with adblockers #nieman

— Joseph Lichterman (@ylichterman) December 2, 2015

.@jason_kint: Getting into tech arms race w adblockers not good. @fred_montagnon: But you don't know really why users are installing #nieman

— Shan Wang ☃ (@shansquared) December 3, 2015

@jason_kint says "the 50cent RPM ads are causing the adblocking, when it accounts for little of the value for publishers" #nieman #adblock

— Dennis Yuscavitch (@dennisy) December 3, 2015

We define premium as trusted content. That applies to the small guys too–@jason_kint #Nieman

— Ann Marie Lipinski (@AMLwhere) December 3, 2015