Heap profiling - breakdown by type

Currently, the -hy RTS option for heap profiling by type doesn't print a summary of the amount allocated for each type, only the amount of data that was live at a given instant. How hard would it be to change it to print out total amounts allocated over the entire run of the program for each type as well? I'd be willing to try to implement it, but any hints would be appreciated (and I wouldn't be sad if someone else went ahead and did it :-) Thanks, Kirsten -- Kirsten Chevalier * krc@uclink.berkeley.edu * Often in error, never in doubt