According to the Original Tooth Fairy Poll's Tooth Fairy Index, roughly $4.50 per lost tooth was paid out in 2016. In 2017 that plummeted to about $4.13, a devastating drop of 53 cents. It's interesting to note, however, that for a first lost tooth the drop was more modest: In 2016 a first tooth ran roughly $5.72; in 2017 that was down 2 cents to $5.70.
All told, the Tooth Fairy invested $271 million in our youth in 2017.
Apparently kids in the West had it best, with an average of $4.85 per tooth. That's followed by $4.35 in the Northeast; $4.12 in the South; and $3.44 for the unfortunate Midwestern youths.
Some poor souls even had parents who weren't interested in furnishing cash to children. Apparently 47% of parents who answered the survey left a small game or toy, 35% left a letter, and 31% left a toothbrush.