$1,000 I Bond with 0.00% Fixed Rate Purchased October 2012

 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
2012 1,000.001.10%2.20%1,002.001,003.602012
20131,005.601,007.201,009.201,011.200.88%1.76%1,012.801,014.001,015.601,017.201,018.801,020.000.59%1.18%1,021.201,022.002013
20141,023.201,024.001,025.201,026.000.59%1.18%1,027.201,028.001,029.201,030.001,031.201,032.000.92%1.84%1,033.601,035.202014
20151,036.801,038.401,040.001,041.600.74%1.48%1,042.801,044.001,045.601,046.801,048.001,049.20-0.80%0.00%1,049.201,049.202015
20161,049.201,049.201,049.201,049.200.77%1.54%1,050.401,052.001,053.201,054.401,056.001,057.200.08%0.16%1,057.201,057.602016
20171,057.601,057.601,058.001,058.001.38%2.76%1,060.401,062.801,065.201,067.601,070.001,072.800.98%1.96%1,074.401,076.402017
20181,078.001,079.601,081.601,083.201.24%2.48%1,085.601,087.601,090.001,092.001,094.401,096.801.11%2.22%1,098.801,100.802018
20191,102.801,104.801,106.801,108.801.16%2.32%1,110.801,113.201,115.201,117.201,119.601,121.600.70%1.40%1,122.801,124.402019
20201,125.601,126.801,128.001,129.601.01%2.02%1,131.601,133.201,135.201,137.201,139.201,141.200.53%1.06%1,142.401,143.202020
20211,144.401,145.201,146.401,147.200.84%1.68%1,148.801,150.401,152.001,153.601,155.201,156.801.77%3.54%1,160.001,163.602021
20221,166.801,170.401,174.001,177.203.56%7.12%1,184.001,191.201,198.001,204.801,212.001,219.204.81%9.62%1,228.801,238.402022
20231,248.001,258.001,268.001,278.003.24%6.48%1,284.801,291.601,298.401,305.601,312.401,319.601.69%3.38%1,323.201,326.802023
20241,330.801,334.401,338.001,342.001.97%3.94%1,346.401,350.801,355.201,359.601,364.001,368.40

From $1,000.00 to $1,368.40 over 12.0 years = 2.63% average annual increase compounded semi-annually.

Generated  11/01/23  07:38