Not really to do with books, but the many independent creators who sell their products on Etsy have more than a little in common with indie authors who sell their books on Amazon.
There’s lots more detail at the link.
(PG thinks there’s a typo in the chart and that “Thereof” should be “share of”.)
Link to the rest at Statista
Aha. As well as writing, my day job is designing and making silver animals and jewellery. And my Etsy sales have doubled this year (Quirky Tiger, since you ask.) I also sell on Amazon Handmade, which nobody has heard of.
Congrats on your Etsy sales, L!