Pear Trees in Demand,

Virginal Dairy Workers Not

According to a clip from ABC News, the yearly cost of the items in the "Twelve Days of Christmas" is tracked by PNC Bank (the background sound might making you lord leaping batty though):

What’s really surprising is that our index follows overall Consumer Price Index trends. To think that the cost of a partridge in a pear tree would mirror what’s going on at Target, for example, is pretty interesting.