I agree. Tables should be tables. As far as the copyright for the charts is concerned, I'd have to check with the unit leader, who is also the copyright holder for the Vision of Britain website (I was just the programmer of it, and am assistant teacher for the unit). He told students it is ok to use chart images for their pages, so I reckon he must have been aware that this would imply releasing them under a CC license.  16:20, 2 May 2012 (GMT)