According to the U.S. Bureau of Labor Statistics, prices for other fats and oils including peanut butter were 46.64% higher in 2018 versus 2003 (a $9.33 difference in value).
Between 2003 and 2018: Other fats and oils including peanut butter experienced an average inflation rate of 2.58% per year. This rate of change indicates significant inflation. In other words, other fats and oils including peanut butter costing $20 in the year 2003 would cost $29.33 in 2018 for an equivalent purchase. Compared to the overall inflation rate of 2.10% during this same period, inflation for other fats and oils including peanut butter was higher.
Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for Other fats and oils including peanut butter:
| Year | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 |
| CPI | 108.558 | 113.833 | 115.942 | 117.592 | 122.215 | 144.496 | 146.459 | 142.347 | 153.046 | 172.141 | 168.587 | 164.018 | 159.607 | 157.220 | 158.409 | 159.189 |
Below are calculations of equivalent buying power for Other fats and oils including peanut butter, over time, for $20 beginning in 2003. Each of the amounts below is equivalent in terms of what it could buy at the time:
| Year | USD Value | Inflation Rate |
|---|---|---|
| 2003 | $20.00 | - |
| 2004 | $20.97 | 4.86% |
| 2005 | $21.36 | 1.85% |
| 2006 | $21.66 | 1.42% |
| 2007 | $22.52 | 3.93% |
| 2008 | $26.62 | 18.23% |
| 2009 | $26.98 | 1.36% |
| 2010 | $26.23 | -2.81% |
| 2011 | $28.20 | 7.52% |
| 2012 | $31.71 | 12.48% |
| 2013 | $31.06 | -2.06% |
| 2014 | $30.22 | -2.71% |
| 2015 | $29.40 | -2.69% |
| 2016 | $28.96 | -1.50% |
| 2017 | $29.18 | 0.76% |
| 2018 | $29.33 | 0.49%* |