The only way profit would increase without increasing profit margins is if the volume increased. While I don't have the data I think it would be safe to say tha

The only way profit would increase without increasing profit margins is if the volume increased. While I don't have the data I think it would be safe to say that volume did not increase but actually went down due to all craziness in 2020/2021, so it makes sense to assume that the profit margins went up. Which can be easily seen in corporate reports where they report not only on net profit but on profit margins as well.