$200 I Bond with 1.20% Fixed Rate Purchased August 2005

 Jan
1
Feb
1
Infla
tion
Rate
Com
posite
Rate
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Infla
tion
Rate
Com
posite
Rate
Sep
1
Oct
1
Nov
1
Dec
1
2005 200.001.79%4.80%200.80201.60202.40203.202005
2006204.00204.802.85%6.93%206.00207.12208.32209.52210.72211.920.50%2.21%212.32212.72213.12213.442006
2007213.84214.241.55%4.32%215.04215.76216.56217.28218.08218.881.21%3.63%219.52220.16220.88221.522007
2008222.16222.881.53%4.28%223.68224.48225.28226.08226.88227.682.42%6.07%228.80230.00231.12232.242008
2009233.44234.562.46%6.15%235.76236.96238.16239.36240.56241.76-2.78%0.00%241.76241.76241.76241.762009
2010241.76241.761.53%4.28%242.64243.44244.32245.20246.08246.960.77%2.75%247.52248.08248.64249.202010
2011249.76250.320.37%1.94%250.72251.12251.52251.92252.32252.722.30%5.83%253.92255.12256.40257.602011
2012258.88260.081.53%4.28%260.96261.92262.88263.76264.72265.681.10%3.41%266.40267.20267.92268.722012
2013269.44270.240.88%2.97%270.88271.60272.24272.88273.60274.240.59%2.39%274.80275.36275.84276.402013
2014276.96277.520.59%2.39%278.08278.64279.20279.76280.32280.800.92%3.05%281.52282.24282.96283.682014
2015284.40285.120.74%2.69%285.76286.40287.04287.68288.32288.96-0.80%0.00%288.96288.96288.96288.962015
2016288.96288.960.77%2.75%289.60290.24290.96291.60292.24292.960.08%1.36%293.28293.60293.92294.322016
2017294.64294.961.38%3.98%295.92296.88297.92298.88299.84300.800.98%3.17%301.60302.40303.20304.002017
2018304.80305.601.24%3.69%306.56307.44308.40309.36310.32311.201.11%3.43%312.08312.96313.84314.722018
2019315.68316.561.16%3.53%317.52318.40319.36320.24321.20322.160.70%2.61%322.88323.52324.24324.962019
2020325.68326.401.01%3.23%327.28328.16329.04329.92330.80331.680.53%2.27%332.32332.96333.52334.162020
2021334.80335.440.84%2.89%336.24337.04337.84338.64339.44340.321.77%4.76%341.68342.96344.32345.682021
2022347.04348.403.56%8.36%350.80353.20355.60358.08360.48362.964.81%10.88%366.16369.44372.72376.002022
2023379.36382.723.24%7.72%385.12387.60390.00392.48394.96397.521.69%4.60%399.04400.56402.08403.602023
2024405.12406.641.97%5.16%408.40410.08411.84413.60415.36417.121.48%4.18%418.56420.00421.44422.882024
2025424.40425.840.95%3.11%426.96428.00429.12430.24431.36432.481.43%4.08%433.92435.44436.88438.322025
2026439.84441.281.56%4.34%442.88444.48446.08447.68449.28450.88

From $200.00 to $450.88 over 21.0 years = 3.91% average annual increase compounded semi-annually.

Generated  11/04/25  09:10