$75 I Bond with 3.30% Fixed Rate Purchased March 1999

 Jan
1
Feb
1
Mar
1
Infla
tion
Rate
Com
posite
Rate
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Infla
tion
Rate
Com
posite
Rate
Oct
1
Nov
1
Dec
1
1999 75.000.86%5.05%75.3075.6375.9376.2676.5676.890.86%5.05%77.2277.5277.851999
200078.1878.5178.841.76%6.88%79.2979.7480.1980.6481.0981.541.91%7.18%82.0282.5082.982000
200183.4983.9784.481.52%6.39%84.9385.3885.8386.2886.7387.181.44%6.23%87.6388.0888.532001
200288.9889.4389.911.19%5.72%90.3390.7591.2091.6292.0492.490.28%3.87%92.7993.0993.392002
200393.6993.9994.291.23%5.80%94.7495.1995.6496.0996.5797.021.77%6.90%97.5698.1398.672003
200499.2499.81100.380.54%4.40%100.74101.10101.49101.85102.21102.601.19%5.72%103.08103.56104.072004
2005104.55105.03105.541.33%6.00%106.05106.59107.10107.64108.18108.721.79%6.94%109.35109.95110.582005
2006111.21111.84112.502.85%9.09%113.34114.18115.02115.89116.76117.600.50%4.32%118.02118.44118.862006
2007119.28119.70120.151.55%6.45%120.78121.44122.07122.73123.36124.021.21%5.76%124.62125.19125.792007
2008126.39126.99127.591.53%6.41%128.25128.94129.63130.29130.98131.672.42%8.22%132.57133.44134.342008
2009135.24136.17137.072.46%8.30%138.00138.93139.89140.85141.78142.77-2.78%0.00%142.77142.77142.772009
2010142.77142.77142.771.53%6.41%143.52144.27145.05145.80146.58147.360.77%4.87%147.96148.56149.132010
2011149.73150.33150.960.37%4.05%151.47151.98152.49153.00153.51154.022.30%7.98%155.04156.03157.052011
2012158.10159.12160.171.53%6.41%161.01161.85162.72163.56164.43165.301.10%5.54%166.05166.80167.582012
2013168.33169.11169.890.88%5.09%170.61171.33172.05172.77173.49174.210.59%4.50%174.87175.50176.162013
2014176.82177.48178.140.59%4.50%178.80179.46180.12180.81181.47182.160.92%5.17%182.94183.72184.502014
2015185.28186.09186.870.74%4.80%187.62188.34189.09189.84190.59191.34-0.80%1.67%191.61191.88192.152015
2016192.39192.66192.930.77%4.87%193.71194.49195.27196.05196.83197.640.08%3.46%198.21198.78199.352016
2017199.92200.49201.061.38%6.11%202.08203.10204.12205.14206.16207.210.98%5.29%208.11209.01209.942017
2018210.84211.77212.701.24%5.82%213.72214.74215.76216.81217.86218.881.11%5.56%219.87220.89221.912018
2019222.93223.95224.971.16%5.66%226.02227.07228.12229.20230.25231.330.70%4.72%232.23233.13234.032019
2020234.96235.86236.791.01%5.35%237.84238.89239.94240.99242.07243.120.53%4.38%243.99244.89245.762020
2021246.66247.56248.430.84%5.01%249.45250.50251.52252.57253.62254.641.77%6.90%256.08257.55258.992021
2022260.46261.93263.433.56%10.54%265.68267.99270.27272.61274.95277.324.81%13.08%280.26283.23286.232022
2023289.29292.35295.473.24%9.89%297.87300.27302.70305.13307.59310.081.69%6.74%311.79313.53315.272023
2024317.01318.75320.521.97%7.31%322.44324.39326.31328.29330.24332.251.48%6.31%333.96335.70337.442024
2025339.21340.95342.720.95%5.23%344.19345.69347.16348.66350.16351.691.43%6.21%353.49355.29357.122025
2026358.92360.78362.611.56%6.47%364.53366.48368.43370.38372.36374.34

From $75.00 to $374.34 over 27.5 years = 5.93% average annual increase compounded semi-annually.

Generated  11/04/25  09:10