Will a reference from the National Endowment for the Arts be suitable?
"At 45.2 percent, the 2012 share of adults who read novels or short stories was much lower than the share who had read any books in general. By 2017, 41.8 percent of adults had read novels or short stories in the previous year, and by 2022, the share was 37.6 percent."
So, fiction reading rates are dropping, in general, from 45.2% down to 37.6% over the decade 2012-2022.
"In 2017, the share of women reading novels or short stories was down to 50.0 percent, and, in 2022, to 46.9 percent. Men readers saw their fiction-reading rate slip from 35.1 percent in 2012 to 33.0 percent in 2017 and then to 27.7 percent in 2022. The net result is that the difference in fiction-reading rates for men and women remains at just over 19 percentage points, as observed ten years earlier. "
Men do read fiction at notably lower rates than women. Men are not dropping faster than women, though - the difference has been about 19% for the past decade.
What does the data tell us about reading rates by gender?
www.arts.gov