United States Inflation Rate in 1921
Inflation rate in the United States was -10.82% in 1921. That is 13.47 less than it was in the preceding 1920 and 8.51% less than in the following year of 1922.
Month over month inflation rate is calculated for just the subject month itself - from the first to the last day of that month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month to month, % | -2.06 | -3.16 | -0.54 | -1.09 | -2.21 | -0.56 | 0.57 | 0.00 | -1.13 | 0.00 | -0.57 | -0.57 | -10.82 |
Year to year inflation rate is calculated for 12 months: 11 months preceding the subject one and the subject month itself:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year over year (12 months), % | -1.55 | -5.64 | -7.11 | -10.84 | -14.08 | -15.79 | -14.90 | -12.81 | -12.50 | -12.06 | -12.12 | -10.82 | -10.82 |
Progressive inflation rate is an incremental year to date inflation that sums rates from the beginning of the calendar year to the end of the subject month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Progressive (year to date), % | -2.06 | -5.15 | -5.67 | -6.70 | -8.76 | -9.28 | -8.76 | -8.76 | -9.79 | -9.79 | -10.31 | -10.82 | -10.82 |
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