The Tooth Fairy must not have gotten in on the huge Bitcoin surge early enough, because it sounds like she's struggling a bit.

An annual survey called the Original Tooth Fairy Poll just came out. And even though the stock market soared last year, the average tooth payout dropped by about 11%.

The average amount of money kids got for each tooth was $4.13. That's down from an all-time high of $4.66 in 2016. Kids in the western half of the country did best, raking in $4.85 a tooth, while kids in the Midwest got just $3.44.

The price for a first tooth stayed pretty steady at $5.70, which is down just 2 cents in the last year.

The Tooth Fairy has paid out a total of $271 million for lost teeth last year. Aside from money, the most common things she leaves are a toy, a letter, and a toothbrush.