Hello Matthew.
This is the kind of reporting that is easily handled by the CSV utility and the Table Tool. See the example JCL, which produced the example output below:
Processor Group ARLC06 used 2 times
Processor Group CLEN04 used 38 times
Processor Group CLEX921 used 6 times
Processor Group ARLC07GD used 1 times
Processor Group CLEX916 used 7 times
Processor Group CLEX918 used 4 times
Processor Group CLEN919 used 6 times
Processor Group CEN920 used 6 times
Processor Group CLE920 used 3 times
Processor Group CLEX922 used 6 times
Processor Group CLEX23 used 9 times
Processor Group CLEX924 used 8 times
Processor Group COPYBOOK used 54 times
Processor Group DYNAMBOX used 3 times
Processor Group ASMNBL used 6 times
Processor Group CLENBL used 33 times