Last time I told that I would release software I used to make RFS stats plots. You can find it in my github repo - github.com/tdi/debrfstats.
The software contains small class to get data needed to generate plots, as well as for doing some simple bug analysis. The software also contains an R script to make plots from a CSV file. For now debrfstats uses SOAP interface to Debbugs but I am now working on adding a UDD data source.
The software is written in Python 2 (SOAPpy does not come in 3 flavour), some usage examples are in
the main.py file in the repository.
If you have any questions or wishes for debrfstats do not hesitate to contact me.