If you liked our 30 year recap, you’ll love this. Each pie shows the revenue contribution from various formats, 1973-present, based on RIAA revenue figures. If you want to see it again, just wait for the animation to start over.
This is US-based data, and each pie represents 100% of total recording revenue.
And, here are the individual year source images, starting with 1973 on the top left and 2012 on the bottom right. Each image was created by the RIAA, using their shipments and revenue database.