$1,000 I Bond with 0.00% Fixed Rate Purchased September 2015

 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
2015 1,000.00-0.80%0.00%1,000.001,000.001,000.002015
20161,000.001,000.001,000.000.77%1.54%1,001.201,002.401,004.001,005.201,006.401,007.600.08%0.16%1,007.601,008.001,008.002016
20171,008.001,008.401,008.401.38%2.76%1,010.801,013.201,015.201,017.601,020.001,022.400.98%1.96%1,024.001,025.601,027.202017
20181,029.201,030.801,032.401.24%2.48%1,034.401,036.801,038.801,040.801,043.201,045.201.11%2.22%1,047.201,049.201,050.802018
20191,052.801,054.801,056.80

From $1,000.00 to $1,056.80 over 3.5 years = 1.58% average annual increase compounded semi-annually.

Generated  05/01/18  10:11