$25 I Bond with 0.10% Fixed Rate Purchased September 2016

 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
2016 25.000.08%0.26%25.0125.0125.022016
201725.0225.0325.031.38%2.86%25.0925.1525.2125.2725.3325.390.98%2.06%25.4325.4825.522017
201825.5625.6125.651.24%2.58%25.7025.7625.8125.8725.9325.981.11%2.32%26.0326.0826.132018
201926.1826.2326.28

From $25.00 to $26.28 over 2.5 years = 2.01% average annual increase compounded semi-annually.

Generated  05/01/18  10:11