21.3.2 Description of cumulative data
The Cumulative tab shows aggregated information about each function that includes the following information:

The number of times each function being profiled was called.

The number of times each function was found on the stack by the profiler, both in absolute terms and as a percentage of the total number of scans of the stack.

The number of times each function was found on the top of the stack, both in absolute terms and as a percentage of the total number of scans of the stack.
Common LispWorks User Guide (Macintosh version)  21 Feb 2008