I don't have time to spell out an answer but - to state it quickly - if these figures put jazz and classical on a par in terms of this measure, that needs to be set against our sense of how these two musics (although jazz confusing conflates once-popular song, various idiomatic forms, and improv) fare overall, institutionally and across all lifeworld parameters. So a few days ago I was listening to a Birtwistle premiere at the Proms, Barenboim conducting, Royal Albert Hall fullish (4000+). not the first outing for this work which Barenboim had premiered in Berlin. The concert can be streamed on audio or tv from the BBC for a month. The work required a gigantic orchestra by any standards. So plenty of money, interest and availability, and symbolic kudos. And plenty of folks there on the day to hear. But not on the streaming services. Next week I will be at a posh opera venue. Invariably sold-out, everybody dressed up, fine dining, picnicking and whatnot. And maybe there will eventually be a DVD or broadcast. Again, not on streaming but loads of cash and people, and no sense that this is a struggling sector. So the streaming data might look the same for jazz and classical but my own sense anyway is that the two areas are not very comparable, in terms of consumption but also in terms of social support and perceived legitimacy.