$25 I Bond with 0.10% Fixed Rate Purchased May 2009

 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
2009 25.00-2.78%0.00%25.0025.0025.0025.0025.0025.001.53%3.16%25.072009
201025.1325.2025.2625.3325.400.77%1.64%25.4325.4725.5025.5425.5725.610.37%0.84%25.632010
201125.6525.6625.6825.7025.722.30%4.70%25.8225.9226.0226.1226.2226.321.53%3.16%26.392011
201226.4626.5326.6026.6726.741.10%2.30%26.7926.8426.8926.9427.0027.050.88%1.86%27.092012
201327.1327.1827.2227.2627.300.59%1.28%27.3327.3627.3927.4227.4527.470.59%1.28%27.502013
201427.5327.5627.5927.6227.650.92%1.94%27.6927.7427.7827.8327.8727.920.74%1.58%27.962014
201527.9928.0328.0728.1028.14-0.80%0.00%28.1428.1428.1428.1428.1428.140.77%1.64%28.182015
201628.2228.2628.2928.3328.370.08%0.26%28.3828.3828.3928.3928.4028.411.38%2.86%28.482016
201728.5428.6128.6828.7528.82

From $25.00 to $28.82 over 8.0 years = 1.79% average annual increase compounded semi-annually.

Generated  11/01/16  10:44