They didn't give an average per case in this study, I arrived there by dividing the total amount of years lost by the amount of deaths (1,540/72 = 21.39). That

They didn't give an average per case in this study, I arrived there by dividing the total amount of years lost by the amount of deaths (1,540/72 = 21.39). That just happens to be close to the years lost per 100k.