I’m experimenting with automating my chart production. If it works, this page will be a permanent link to a standard set of charts that are updated every month.

At the moment, it’s not working! My source program (Mathcad) doesn’t let yet me name each exported GIF chart graphic in a consistent way. Once I find a way around that–or persuade the developers to add that as a feature–this page will automatically update each month.

I also plan to include a link to a database–maintained as Excel files–at a later stage. The problem, as always, is the time needed to maintain this site in addition to my media and university work.