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

 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
2010 500.000.77%1.74%500.80501.402010
2011502.20502.80503.60504.400.37%0.94%504.80505.20505.60506.00506.40506.802.30%4.80%508.80510.802011
2012512.80514.80517.00519.001.53%3.26%520.40521.80523.20524.60526.00527.401.10%2.40%528.40529.602012
2013530.60531.60532.60533.800.88%1.96%534.60535.60536.40537.20538.20539.000.59%1.38%539.60540.202013
2014540.80541.40542.00542.800.59%1.38%543.40544.00544.60545.20546.00546.600.92%2.04%547.60548.402014
2015549.40550.40551.20552.200.74%1.68%553.00553.80554.60555.20556.00556.80-0.80%0.00%556.80556.802015
2016556.80556.80556.80556.800.77%1.74%557.60558.40559.20560.00560.80561.600.08%0.36%561.80562.002016
2017562.20562.20562.40562.601.38%2.96%564.00565.40566.80568.20569.60571.000.98%2.16%572.00573.002017
2018574.00575.20576.20577.201.24%2.68%578.40579.80581.00582.40583.60585.001.11%2.42%586.20587.402018
2019588.60589.80590.80592.001.16%2.52%593.20594.40595.80597.00598.20599.400.70%1.60%600.20601.002019
2020601.80602.60603.40604.201.01%2.22%605.40606.40607.60608.60609.80611.000.53%1.26%611.60612.202020
2021613.00613.60614.20614.80

From $500.00 to $614.80 over 10.5 years = 1.98% average annual increase compounded semi-annually.

Generated  05/01/20  10:19