The PDF below represents a LOT of effort to depict the changes in the Diagnostic and Statistical Manuals since the first one was introduced in 1952. It is all pretty much self-explanatory. You can download the spreadsheet for free, but please do respect my copyright. Write if you have any questions or comments about this work.
Fair warning: This huge spreadsheet is best viewed on a big desktop monitor.And even then, some may find the text hard to see. If you are truly interested, email me and I'll send you a pdf that you can right-size to your own visual capabilities.