Now that the Official Charts Company has (finally) decided to introduce top 100 chart runs, I no longer feel the need for this wiki. Thanks to all who took part in archiving the work, particularly Taylor Jago and NicholasBBQ32. Unless I have missed anything, I don't think there is any purpose for this wiki that OCC are not doing currently, therefore I will no longer be helping out. For anyone who is interested in talking about the charts, seeing other stats and sales data and personal charts, I strongly recommend the forum Buzzjack.
Here is OCC's new site. It'll let you look up singles, artists and let you see its top 100 chart run. If only they did this sooner, we wouldn't have to have wasted so many hours of our time!