$1,000 I Bond with 1.30% Fixed Rate Purchased October 2007

 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
2007 1,000.001.21%3.74%1,003.201,006.002007
20081,009.201,012.401,015.601,018.801.53%4.38%1,022.401,026.001,030.001,033.601,037.201,041.202.42%6.17%1,046.401,051.602008
20091,057.201,062.401,068.001,073.202.46%6.25%1,078.801,084.401,090.001,095.601,101.201,106.80-2.78%0.00%1,106.801,106.802009
20101,106.801,106.801,106.801,106.801.53%4.38%1,110.801,114.801,118.801,122.801,126.801,131.200.77%2.85%1,134.001,136.402010
20111,139.201,142.001,144.801,147.200.37%2.04%1,149.201,151.201,153.201,154.801,156.801,158.802.30%5.93%1,164.401,170.002011
20121,176.001,181.601,187.201,193.201.53%4.38%1,197.601,202.001,206.001,210.401,214.801,219.201.10%3.51%1,222.801,226.402012
20131,230.001,233.601,237.201,240.400.88%3.07%1,243.601,246.801,250.001,253.201,256.401,259.600.59%2.49%1,262.401,264.802013
20141,267.601,270.001,272.801,275.200.59%2.49%1,278.001,280.401,283.201,285.601,288.401,291.200.92%3.15%1,294.401,298.002014
20151,301.201,304.801,308.001,311.600.74%2.79%1,314.801,317.601,320.801,323.601,326.801,330.00-0.80%0.00%1,330.001,330.002015
20161,330.001,330.001,330.001,330.000.77%2.85%1,333.201,336.401,339.601,342.801,345.601,348.800.08%1.46%1,350.401,352.002016
20171,353.601,355.201,357.201,358.801.38%4.08%1,363.201,368.001,372.401,377.201,382.001,386.400.98%3.27%1,390.001,394.002017
20181,397.601,401.601,405.201,409.201.24%3.80%1,413.601,418.001,422.401,426.801,431.601,436.001.11%3.53%1,440.001,444.402018
20191,448.801,452.801,457.201,461.201.16%3.64%1,465.601,470.001,474.401,478.801,483.201,487.600.70%2.71%1,490.801,494.402019
20201,497.601,501.201,504.401,507.601.01%3.33%1,511.601,516.001,520.001,524.401,528.401,532.800.53%2.37%1,536.001,538.802020
20211,542.001,544.801,548.001,550.80

From $1,000.00 to $1,550.80 over 13.5 years = 3.28% average annual increase compounded semi-annually.

Generated  05/01/20  10:19