The semi-annual CPI-U rate dropped from 238.031 to 236.119, resulting in a negative variable rate for this period. The resulting variable rate will be 0.00 since bonds can...
Print page
Historical CPI-U Linked Rates
Consumer Price Index for all Urban Consumers (CPI-U)
is the measurement of inflation that the Fed uses to determine the variable rate
of the I Bond's total rate. This is also called the inflation rate of the bond.
The CPI-U value is released monthly, but the I Bond rate is only adjusted semiannually
in May and November. I Bonds purchased in November through April use the CPI-U change
from March to September. I Bonds purchased between May and October use the CPI-U
change from September of the previous year through March.
|
Mean:
|
1.06%
|
|
Median:
|
1.11%
|
|
Highest rate:
|
2.85%
|
|
Lowest rate:
|
-2.78%
|
|
May 2019
|
0.70%
|
|
November 2018
|
1.16%
|
|
May 2018
|
0.98%
|
|
November 2017
|
1.11%
|
|
May 2017
|
0.98%
|
|
November 2016
|
1.38%
|
|
May 2016
|
0.08%
|
|
November 2015
|
0.77%
|
|
May 2015
|
-0.8%
|
|
November 2014
|
0.74%
|
|
May 2014
|
0.92%
|
|
November 2013
|
0.59%
|
|
May 2013
|
0.59%
|
|
November 2012
|
0.88%
|
|
May 2012
|
1.10%
|
|
November 2011
|
1.53%
|
|
May 2011
|
2.30%
|
|
November 2010
|
0.37%
|
|
May 2010
|
0.77%
|
|
November 2009
|
1.53%
|
|
May 2009
|
-2.78%
|
|
November 2008
|
2.46%
|
|
May 2008
|
2.42%
|
|
November 2007
|
1.53%
|
|
May 2007
|
1.21%
|
|
November 2006
|
1.55%
|
|
May 2006
|
0.50%
|
|
November 2005
|
2.85%
|
|
May 2005
|
1.79%
|
|
November 2004
|
1.33%
|
|
May 2004
|
1.19%
|
|
November 2003
|
0.54%
|
|
May 2003
|
1.77%
|
|
November 2002
|
1.23%
|
|
May 2002
|
0.28%
|
|
November 2001
|
1.19%
|
|
May 2001
|
1.44%
|
|
November 2000
|
1.52%
|
|
May 2000
|
1.91%
|
|
November 1999
|
1.76%
|
|
May 1999
|
0.86%
|
|
November 1998
|
0.86%
|
|
September 1998
|
0.62%
|
Related Topics
Page last modified 9/25/2011