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Legend (Graphing Numeric columns onto a Date and Time axis.)

Cost of a U.S. First Class Postage Stamp (1885 - 2007 Est.)

Cost of U.S. First Class Stamp by Year remove

CPI (1967=100), through 3/07

CPI (1967=100) by Date remove

U.S. First Class Stamps vs. Inflation

U.S. First Class Stamps vs. Inflation

Correlations

100%

CPI (1967=100) and Cost of U.S. First Class Stamp