Christmas Price Index chose the items in the popular Christmas carol "The Twelve Days of Christmas" as its market basket: a partridge in a pear tree, two turtle doves, three French hens, four calling birds, five gold(en) rings, six geese, seven swans, eight maids, nine dancing ladies, ten leaping lords, eleven pipers, and twelve drummers. According to tradition, the purchasing of the items begins on December 26 and ends on January 6. PNC compiles both a "Christmas Price Index" and "The True Cost of Christmas." The "Christmas Price Index" is calculated by adding the cost of the items in the song. The "True
The Twelve Days of Christmas (song) indicated in "italics";<br> (b) items that do not appear at all in Austin's version are indicated in bold italics. A similar cumulative verse from Scotland, "The Yule Days", has been likened to "The Twelve Days of Christmas" in the scholarly literature. It has thirteen days rather than twelve, and the number of gifts does not increase in the manner of "The Twelve Days". Its final verse, as published in Chambers, "Popular Rhymes, Fireside Stories, and Amusements of Scotland" (1842), runs as follows: "Pippin go aye" (also spelled "papingo-aye" in later editions) is a Scots word for peacock or parrot. In