Here you see 11 months worth of discovered nuts in my mailbox. A total of 15 nuts found.
There may be some misclassification of days (I don't know when the nut was placed while I was away on vacation--only when we found it), but I find this an interesting distribution of nut appearances over nearly a year.
And what is up with the warm months?
A few more years of this and I should have enough data to analyze (ah, the life of an epidemiologist).