$10,000 I Bond with 1.20% Fixed Rate Purchased April 2008

 Jan
1
Feb
1
Mar
1
Apr
1
Infla
tion
Rate
Com
posite
Rate
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Infla
tion
Rate
Com
posite
Rate
Nov
1
Dec
1
2008 10,0001.53%4.28%10,03610,07210,10810,14410,18010,2162.42%6.07%10,26810,3202008
200910,36810,42010,47210,5282.46%6.15%10,58010,63610,68810,74410,79610,852-2.78%0.00%10,85210,8522009
201010,85210,85210,85210,8521.53%4.28%10,89210,92810,96811,00811,04411,0840.77%2.75%11,10811,1362010
201111,16011,18411,21211,2360.37%1.94%11,25611,27211,29211,30811,32811,3442.30%5.83%11,40011,4522011
201211,50811,56411,62011,6761.53%4.28%11,71611,76011,80011,84011,88411,9241.10%3.41%11,95611,9922012
201312,02412,06012,09212,1280.88%2.97%12,15612,18812,21612,24812,27612,3080.59%2.39%12,33212,3562013
201412,38012,40412,43212,4560.59%2.39%12,48012,50412,53212,55612,58012,6040.92%3.05%12,63612,6682014
201512,70012,73212,76412,7960.74%2.69%12,82412,85212,88012,91212,94012,968-0.80%0.00%12,96812,9682015
201612,96812,96812,96812,9680.77%2.75%12,99613,02813,05613,08813,11613,1480.08%1.36%13,16413,1762016
201713,19213,20813,22413,2361.38%3.98%13,28013,32413,36813,41213,45613,5000.98%3.17%13,53613,5722017
201813,60813,64413,68013,7121.24%3.69%13,75213,79613,83613,88013,92413,9641.11%3.43%14,00414,0442018
201914,08414,12414,16414,2041.16%3.53%14,24414,28814,32814,37214,41214,4560.70%2.61%14,48814,5202019
202014,55214,58014,61214,6441.01%3.23%14,68414,72414,76014,80014,84014,8800.53%2.27%14,90814,9362020
202114,96414,99215,02015,0480.84%2.89%15,08415,12015,15615,19215,22815,2641.77%4.76%15,32415,3842021
202215,44415,50415,56815,6283.56%8.36%15,73615,84415,95216,06016,17216,2804.81%10.88%16,42416,5722022
202316,71616,86417,01617,1643.24%7.72%17,27217,38417,49217,60417,71617,8281.69%4.60%17,89617,9642023
202418,03218,10018,16818,2401.97%5.16%18,31618,39618,47218,55218,63218,7121.48%4.18%18,77618,8402024
202518,90818,97219,03619,1040.95%3.11%19,15219,20419,25219,30019,35219,4001.43%4.08%19,46419,5322025
202619,59619,66419,72819,7961.56%4.34%19,86819,94020,00820,08020,15220,224

From $10,000 to $20,224 over 18.5 years = 3.84% average annual increase compounded semi-annually.

Generated  11/04/25  09:10