What the average that the Tooth Fairy brings?

"I remember getting 50 cents."  I say.  But that doesn't satisfy most kids these days.  There was an article recently written about Tooth Fairy inflation.  They claim that the average is $3.70 a tooth.  I don't know if that is New York or San Francisco dollars or an average nationwide though.  I can tell you that most parents of my patients report the Tooth Fairy leaves about $2.  Some say $5.  One told me the Tooth Fairy left $20 once.  (But that was a pre-arranged deal brokered by a really sharp 7-year-old!)