For the first time in its history, the band’s sales total also includes download and streaming numbers. Last month, Tool — perhaps as well known for its music as its stop-motion music videos — finally put its entire catalog online.

“There’s a brand-new thing we think you’re really going to dig,” Maynard James Keenan, Tool’s lead singer, said when announcing the move. “It’s called digital downloads and streaming. Get ready for the future, folks!”

Tool’s numbers for “Fear Inoculum” included 160,000 downloads of the album as well as 27.6 million song streams — a low streaming sum by pop or hip-hop standards, but better than recent rock releases by Slipknot (19 million), Vampire Weekend (23 million) and the Raconteurs (four million).

Swift’s “Lover,” which opened at No. 1 last week with 867,000 sales, fell to No. 2 with 178,000, a 79 percent drop. It was the first time a Taylor Swift album failed to hold the No. 1 spot for its first two weeks since “Fearless” in 2008.

Also this week, Lana Del Rey’s “Norman ____ Rockwell!” opened at No. 3, with the equivalent of 104,000 albums. “We Love You Tecca,” a new mixtape by Lil Tecca, the 17-year-old New York rapper who has dominated streaming services recently with his song “Ransom,” opened at No. 4 with 68,000. Young Thug’s “So Much Fun” fell three spots to No. 5.