Viewers seek out ’13th’ and other stories about race amid protests.

The audience for filmmaker Ava DuVernay’s 2016 documentary 13th, about mass incarceration that disproportionately affects black people, jumped more than 47 times higher over the past three weeks, streaming service Netflix Inc said on Tuesday. Millions of people watched, the company said, though it did not give a specific figure. DuVernay welcomed the sudden spike in attention for “13th” and other movies, books and TV shows about race from people trying to better understand the reasons behind inequality.

DuVernay’s Netflix series When They See Us, about five men wrongly accused of raping a jogger in Central Park in 1989, saw demand jump 83% in that time.

On the Apple TV app, which featured sections called Confronting Systemic Racism and Black in America, 2014 Oscar-winning drama 12 Years a Slave climbed to No. 8 among top independent films for the week ending June 14.

That was just behind documentary I Am Not Your Negro and Loving, about an interracial couple who prompted a landmark anti-discrimination ruling in 1967.