$200 I Bond with 0.10% Fixed Rate Purchased October 2009

 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
2009 200.00-2.78%0.00%200.00200.002009
2010200.00200.00200.00200.001.53%3.16%200.56201.04201.60202.08202.64203.200.77%1.64%203.44203.762010
2011204.00204.32204.56204.880.37%0.84%205.04205.20205.28205.44205.60205.762.30%4.70%206.56207.362011
2012208.16208.96209.76210.561.53%3.16%211.12211.68212.24212.80213.36213.921.10%2.30%214.32214.722012
2013215.12215.52216.00216.400.88%1.86%216.72217.04217.44217.76218.08218.400.59%1.28%218.64218.882013
2014219.12219.36219.60219.760.59%1.28%220.00220.24220.48220.72220.96221.200.92%1.94%221.52221.922014
2015222.24222.64222.96223.360.74%1.58%223.68223.92224.24224.56224.80225.12-0.80%0.00%225.12225.122015
2016225.12225.12225.12225.120.77%1.64%225.44225.76226.08226.32226.64226.960.08%0.26%227.04227.042016
2017227.12227.12227.20227.281.38%2.86%227.84228.32228.88229.44230.00230.560.98%2.06%230.96231.362017
2018231.76232.16232.56232.961.24%2.58%233.44233.92234.48234.96235.44236.001.11%2.32%236.48236.882018
2019237.36237.84238.24238.721.16%2.42%239.20239.68240.16240.64241.12241.600.70%1.50%241.92242.242019
2020242.48242.80243.12243.441.01%2.12%243.84244.32244.72245.12245.60246.000.53%1.16%246.24246.482020
2021246.72246.96247.20247.44

From $200.00 to $247.44 over 11.5 years = 1.86% average annual increase compounded semi-annually.

Generated  05/01/20  10:19