| Christmas Price Index (US$) | |||
|---|---|---|---|
| Year | Christmas Price Index | Δ% in CPI | True Cost of Christmas |
| 1984 | $12,371.56 | +1.44% | $61,318.94 |
| 1985 | $12,765.99 | +3.29% | $62,818.92 |
| 1986 | $12,920.25 | +1.21% | $63,402.22 |
| 1987 | $13,871.75 | +7.36% | $68,740.80 |
| 1988 | $13,785.63 | -0.62% | $67,745.74 |
| 1989 | $14,598.78 | +5.90% | $70,961.21 |
| 1990 | $15,231.72 | +4.34% | $72,205.12 |
| 1991 | $15,455.79 | +1.47% | $71,907.19 |
| 1992 | $15,581.96 | +0.82% | $71,618.71 |
| 1993 | $15,760.70 | +1.15% | $72,258.42 |
| 1994 | $15,944.20 | +1.16% | $73,258.42 |
| 1995 | $12,481.65 | -21.72% | $51,764.94 |
| 1996 | $13,195.86 | +5.72% | $54,478.36 |
| 1997 | $13,343.86 | +1.12% | $55,086.26 |
| 1998 | $14,214.90 | +6.53% | $58,405.09 |
| 1999 | $14,940.17 | +5.10% | $59,719.33 |
| 2000 | $15,210.22 | +1.81% | $60,307.18 |
| 2001 | $15,748.81 | +3.54% | $62,935.17 |
| 2002 | $14,558.05 | -7.56% | $54,951.31 |
| 2003 | $16,885.28 | +15.99% | $65,264.28 |
| 2004 | $17,296.91 | +2.44% | $66,334.46 |
| 2005 | $18,348.87 | +6.08% | $72,608.02 |
| 2006 | $18,920.59 | +3.1% | $75,122.03 |
| 2007 | $19,507.25 | +3.1% | $78,100.10 |
The 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 golden 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 25 and ends on January 5.
The price of a pear tree comes from a nursery in Philadelphia. The partridge, turtle dove and French hen prices are determined by the Cincinnati Zoo and Botanical Garden. The price of a canary at Petco is used for the calling bird. Gordon Jewelers sets the cost of the gold rings. The National Aviary in Pittsburgh sets prices for swans and geese. The maids are assumed to be unskilled laborers earning the Federal Minimum Wage. A Philadelphia dance company provides estimates for the salary of ladies dancing, and the Philadelphia Ballet estimates the leaping lords. The going-rate for drummers and pipers is that of a Pennsylvania musicians union.
In general, the prices in the index have reflected the United States's growing service economy—prices for goods have mostly fallen, but prices for labor have risen greatly. The cost of hiring ladies and lords, for example, has risen over 300 percent. After the high cost of the dancers, the seven swans are the most expensive item on the index; the unpredictable breeding cycle of swans makes their supply uncertain. The cheapest item in the index is the partridge which, in 2007, could be purchased for $15. Costs have generally risen and fallen along with the standard United States Consumer Price Index.
The survey also tracks the cost of ordering the items online; doing so is significantly more expensive. In 2007, PNC estimated the cost of purchasing all 364 items online at $128,886.