Chartrdaily is a site that analyzes reports and creates infographics out of them. They recently reviewed the latest RIAA reports and digested that into a graphic that shows the history of format sales over the past 30 years. A few interesting tidbits crop up. 1999 was the peak year for music sales in USA with a revenue of over $21 billion (adjusted for inflation). Napster apparently did have a marked affect on album sales. Since Napster, file sharing/downloads/streaming has resoundingly cut into the sales of physical media. Sales actually have rebounded since 2015. And despite that we're all big fans here, vinyl is just a fraction of music sales (roughly 5%), though it has had a steady increase. Check out the visual here.