How many people make more than 5,000 dollars a year from origami?

Blog post on selling origami:
 * https://blog.kusudama.me/2017/07/16/selling-origami-bad-idea/

Facebook discussion:
 * https://www.facebook.com/ekaterina.lukasheva.98/posts/1471914839533661

Quora question:
 * https://www.quora.com/How-many-people-in-the-U-S-make-more-than-5000-dollars-a-year-from-origami

Ideas for selling origami