"The survey, which drew responses from 5,699 published authors, found that in 2022, their median gross pre-tax income from their books was $2,000. When combined with other writing-related income, the total annual median income was $5,000." https://www.publishersweekly.com/pw/by-topic/industry-news/publisher-news/article/93301-author-incomes-post-small-gains.html