$500 I Bond with 0.20% Fixed Rate Purchased May 2010

 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
2010 500.000.77%1.74%500.80501.40502.20502.80503.60504.400.37%0.94%504.802010
2011505.20505.60506.00506.40506.802.30%4.80%508.80510.80512.80514.80517.00519.001.53%3.26%520.402011
2012521.80523.20524.60526.00527.401.10%2.40%528.40529.60530.60531.60532.60533.800.88%1.96%534.602012
2013535.60536.40537.20538.20539.000.59%1.38%539.60540.20540.80541.40542.00542.800.59%1.38%543.402013
2014544.00544.60545.20546.00546.600.92%2.04%547.60548.40549.40550.40551.20552.200.74%1.68%553.002014
2015553.80554.60555.20556.00556.80-0.80%0.00%556.80556.80556.80556.80556.80556.800.77%1.74%557.602015
2016558.40559.20560.00560.80561.600.08%0.36%561.80562.00562.20562.20562.40562.601.38%2.96%564.002016
2017565.40566.80568.20569.60571.000.98%2.16%572.00573.00574.00575.20576.20577.201.24%2.68%578.402017
2018579.80581.00582.40583.60585.001.11%2.42%586.20587.40588.60589.80590.80592.001.16%2.52%593.202018
2019594.40595.80597.00598.20599.400.70%1.60%600.20601.00601.80602.60603.40604.201.01%2.22%605.402019
2020606.40607.60608.60609.80611.000.53%1.26%611.60612.20613.00613.60614.20614.800.84%1.88%615.802020
2021616.80617.60618.60619.60620.601.77%3.74%622.60624.40626.40628.40630.20632.203.56%7.33%636.002021
2022639.80643.60647.60651.40655.404.81%9.83%660.60666.00671.40676.80682.20687.603.24%6.69%691.402022
2023695.20699.00702.80706.80710.60

From $500.00 to $710.60 over 13.0 years = 2.72% average annual increase compounded semi-annually.

Generated  11/01/22  11:42