Spreadsheets and Charts by Dr James Merryweather
The information contained in the following, although still the subject of work in progress, is nevertheless fascinating and very useful. In order to ensure that they can be viewed by everyone, the charts are presented as images, and the spreadsheets in HTML. This also saves considerable space on the site. Researchers can obtain the originals in Microsoft excel on request from the author.
For more historical information, visit the History section.