$1,000 I Bond with 1.20% Fixed Rate Purchased November 2007

 Jan
1
Feb
1
Mar
1
Apr
1
May
1
Infla
tion
Rate
Com
posite
Rate
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Infla
tion
Rate
Com
posite
Rate
Dec
1
2007 1,000.001.53%4.28%1,003.602007
20081,007.201,010.801,014.401,018.001,021.602.42%6.07%1,026.801,032.001,036.801,042.001,047.201,052.802.46%6.15%1,058.002008
20091,063.601,068.801,074.401,079.601,085.20-2.78%0.00%1,085.201,085.201,085.201,085.201,085.201,085.201.53%4.28%1,089.202009
20101,092.801,096.801,100.801,104.401,108.400.77%2.75%1,110.801,113.601,116.001,118.401,121.201,123.600.37%1.94%1,125.602010
20111,127.201,129.201,130.801,132.801,134.402.30%5.83%1,140.001,145.201,150.801,156.401,162.001,167.601.53%4.28%1,171.602011
20121,176.001,180.001,184.001,188.401,192.401.10%3.41%1,195.601,199.201,202.401,206.001,209.201,212.800.88%2.97%1,215.602012
20131,218.801,221.601,224.801,227.601,230.800.59%2.39%1,233.201,235.601,238.001,240.401,243.201,245.600.59%2.39%1,248.002013
20141,250.401,253.201,255.601,258.001,260.400.92%3.05%1,263.601,266.801,270.001,273.201,276.401,279.600.74%2.69%1,282.402014
20151,285.201,288.001,291.201,294.001,296.80-0.80%0.00%1,296.801,296.801,296.801,296.801,296.801,296.800.77%2.75%1,299.602015
20161,302.801,305.601,308.801,311.601,314.800.08%1.36%1,316.401,317.601,319.201,320.801,322.401,323.601.38%3.98%1,328.002016
20171,332.401,336.801,341.201,345.601,350.000.98%3.17%1,353.601,357.201,360.801,364.401,368.001,371.201.24%3.69%1,375.202017
20181,379.601,383.601,388.001,392.401,396.401.11%3.43%1,400.401,404.401,408.401,412.401,416.401,420.401.16%3.53%1,424.402018
20191,428.801,432.801,437.201,441.201,445.600.70%2.61%1,448.801,452.001,455.201,458.001,461.201,464.401.01%3.23%1,468.402019
20201,472.401,476.001,480.001,484.001,488.000.53%2.27%1,490.801,493.601,496.401,499.201,502.001,504.80

From $1,000.00 to $1,504.80 over 13.0 years = 3.17% average annual increase compounded semi-annually.

Generated  05/01/20  10:19