$200 I Bond with 3.30% Fixed Rate Purchased December 1998

 Infla
tion
Rate
Com
posite
Rate
Jan
1
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Infla
tion
Rate
Com
posite
Rate
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
1998 200.001998
19990.86%5.05%200.80201.68202.48203.36204.16205.040.86%5.05%205.92206.72207.60208.48209.36210.241999
20001.76%6.88%211.44212.64213.84215.04216.24217.441.91%7.18%218.72220.00221.28222.64223.92225.282000
20011.52%6.39%226.48227.68228.88230.08231.28232.481.44%6.23%233.68234.88236.08237.28238.48239.762001
20021.19%5.72%240.88242.00243.20244.32245.44246.640.28%3.87%247.44248.24249.04249.84250.64251.442002
20031.23%5.80%252.64253.84255.04256.24257.52258.721.77%6.90%260.16261.68263.12264.64266.16267.682003
20040.54%4.40%268.64269.60270.64271.60272.56273.601.19%5.72%274.88276.16277.52278.80280.08281.442004
20051.33%6.00%282.80284.24285.60287.04288.48289.921.79%6.94%291.60293.20294.88296.56298.24300.002005
20062.85%9.09%302.24304.48306.72309.04311.36313.600.50%4.32%314.72315.84316.96318.08319.20320.402006
20071.55%6.45%322.08323.84325.52327.28328.96330.721.21%5.76%332.32333.84335.44337.04338.64340.242007
20081.53%6.41%342.00343.84345.68347.44349.28351.122.42%8.22%353.52355.84358.24360.64363.12365.522008
20092.46%8.30%368.00370.48373.04375.60378.08380.72-2.78%0.00%380.72380.72380.72380.72380.72380.722009
20101.53%6.41%382.72384.72386.80388.80390.88392.960.77%4.87%394.56396.16397.68399.28400.88402.562010
20110.37%4.05%403.92405.28406.64408.00409.36410.722.30%7.98%413.44416.08418.80421.60424.32427.122011
20121.53%6.41%429.36431.60433.92436.16438.48440.801.10%5.54%442.80444.80446.88448.88450.96453.042012
20130.88%5.09%454.96456.88458.80460.72462.64464.560.59%4.50%466.32468.00469.76471.52473.28475.042013
20140.59%4.50%476.80478.56480.32482.16483.92485.760.92%5.17%487.84489.92492.00494.08496.24498.322014
20150.74%4.80%500.32502.24504.24506.24508.24510.24-0.80%1.67%510.96511.68512.40513.04513.76514.482015
20160.77%4.87%516.56518.64520.72522.80524.88527.040.08%3.46%528.56530.08531.60533.12534.64536.162016
20171.38%6.11%538.88541.60544.32547.04549.76552.560.98%5.29%554.96557.36559.84562.24564.72567.202017
20181.24%5.82%569.92572.64575.36578.16580.96583.681.11%5.56%586.32589.04591.76594.48597.20599.922018
20191.16%5.66%602.72605.52608.32611.20614.00616.880.70%4.72%619.28621.68624.08626.56628.96631.442019
20201.01%5.35%634.24637.04639.84642.64645.52648.320.53%4.38%650.64653.04655.36657.76660.16662.482020
20210.84%5.01%665.20668.00670.72673.52676.32679.041.77%6.90%682.88686.80690.64694.56698.48702.482021
20223.56%10.54%708.48714.64720.72726.96733.20739.524.81%13.08%747.36755.28763.28771.44779.60787.922022
20233.24%9.89%794.32800.72807.20813.68820.24826.881.69%6.74%831.44836.08840.72845.36850.00854.722023
20241.97%7.31%859.84865.04870.16875.44880.64886.001.48%6.31%890.56895.20899.84904.56909.20913.922024
20250.95%5.23%917.84921.84925.76929.76933.76937.841.43%6.21%942.64947.44952.32957.12962.08966.962025
20261.56%6.47%972.08977.28982.48987.68992.96998.24

From $200.00 to $998.24 over 27.5 years = 5.93% average annual increase compounded semi-annually.

Generated  11/04/25  09:10