According to the U.S. Bureau of Labor Statistics, prices for butter and margarine were 110.06% higher in 2021 versus 1997 (a $22.01 difference in value).
Between 1997 and 2021: Butter and margarine experienced an average inflation rate of 3.14% per year. This rate of change indicates significant inflation. In other words, butter and margarine costing $20 in the year 1997 would cost $42.01 in 2021 for an equivalent purchase. Compared to the overall inflation rate of 2.16% during this same period, inflation for butter and margarine was higher.
Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for Butter and margarine:
| Year | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| CPI | 100.000 | 111.677 | 111.569 | 108.123 | 124.223 | 120.977 | 119.462 | 137.223 | 136.277 | 132.631 | 136.260 | 154.470 | 155.924 | 160.740 | 184.122 | 183.813 | 183.932 | 197.454 | 199.308 | 200.844 | 204.749 | 205.432 | 206.035 | 207.531 | 210.060 |
Below are calculations of equivalent buying power for Butter and margarine, over time, for $20 beginning in 1997. Each of the amounts below is equivalent in terms of what it could buy at the time:
| Year | USD Value | Inflation Rate |
|---|---|---|
| 1997 | $20.00 | - |
| 1998 | $22.34 | 11.68% |
| 1999 | $22.31 | -0.10% |
| 2000 | $21.62 | -3.09% |
| 2001 | $24.84 | 14.89% |
| 2002 | $24.20 | -2.61% |
| 2003 | $23.89 | -1.25% |
| 2004 | $27.44 | 14.87% |
| 2005 | $27.26 | -0.69% |
| 2006 | $26.53 | -2.68% |
| 2007 | $27.25 | 2.74% |
| 2008 | $30.89 | 13.36% |
| 2009 | $31.18 | 0.94% |
| 2010 | $32.15 | 3.09% |
| 2011 | $36.82 | 14.55% |
| 2012 | $36.76 | -0.17% |
| 2013 | $36.79 | 0.06% |
| 2014 | $39.49 | 7.35% |
| 2015 | $39.86 | 0.94% |
| 2016 | $40.17 | 0.77% |
| 2017 | $40.95 | 1.94% |
| 2018 | $41.09 | 0.33% |
| 2019 | $41.21 | 0.29% |
| 2020 | $41.51 | 0.73% |
| 2021 | $42.01 | 1.22%* |