It's official. With this week's data, Kimetsu no Yaiba has sold in 8 weeks more copies than it sold over all of 2019, according to Oricon.
— Shonen Jump News (@WSJ_manga) January 15, 2020
KnY in 2019: 12.057.628 copies.
KnY in 8 weeks of 2020: 12.882.297 copies.
Keep in mind timeframes are based on Oricon's Yearly Ranks. https://t.co/gq2NFqFvfh