$25 I Bond with 0.70% Fixed Rate Purchased November 2008

 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
2008 25.002.46%5.64%25.122008
200925.2325.3525.4725.5925.71-2.78%0.00%25.7125.7125.7125.7125.7125.711.53%3.77%25.792009
201025.8725.9526.0326.1126.190.77%2.25%26.2426.2926.3426.3926.4426.480.37%1.44%26.512010
201126.5426.5826.6126.6426.672.30%5.32%26.7926.9027.0227.1427.2627.381.53%3.77%27.472011
201227.5527.6427.7227.8127.901.10%2.91%27.9728.0328.1028.1728.2428.310.88%2.47%28.372012
201328.4328.4828.5428.6028.660.59%1.88%28.7028.7528.7928.8428.8828.930.59%1.88%28.982013
201429.0229.0729.1129.1629.200.92%2.55%29.2629.3229.3929.4529.5129.570.74%2.19%29.622014
201529.6829.7329.7929.8429.89-0.80%0.00%29.8929.8929.8929.8929.8929.890.77%2.25%29.952015
201630.0030.0630.1130.1730.230.08%0.86%30.2530.2730.2930.3230.3430.361.38%3.47%30.452016
201730.5330.6230.7130.8030.890.98%2.67%30.9631.0331.1031.1631.2331.301.24%3.19%31.382017
201831.4731.5531.6331.7231.80

From $25.00 to $31.80 over 9.5 years = 2.55% average annual increase compounded semi-annually.

Generated  11/17/17  15:20