$5,000 I Bond with 0.70% Fixed Rate Purchased March 2009

 Jan
1
Feb
1
Mar
1
Infla
tion
Rate
Com
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Rate
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Sep
1
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tion
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Com
posite
Rate
Oct
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Nov
1
Dec
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2009 5,0002.46%5.64%5,0245,0465,0705,0945,1185,142-2.78%0.00%5,1425,1425,1422009
20105,1425,1425,1421.53%3.77%5,1585,1745,1905,2065,2225,2380.77%2.25%5,2485,2585,2682010
20115,2785,2885,2960.37%1.44%5,3025,3085,3165,3225,3285,3342.30%5.32%5,3585,3805,4042011
20125,4285,4525,4761.53%3.77%5,4945,5105,5285,5445,5625,5801.10%2.91%5,5945,6065,6202012
20135,6345,6485,6620.88%2.47%5,6745,6865,6965,7085,7205,7320.59%1.88%5,7405,7505,7582013
20145,7685,7765,7860.59%1.88%5,7965,8045,8145,8225,8325,8400.92%2.55%5,8525,8645,8782014
20155,8905,9025,9140.74%2.19%5,9245,9365,9465,9585,9685,978-0.80%0.00%5,9785,9785,9782015
20165,9785,9785,9780.77%2.25%5,9906,0006,0126,0226,0346,0460.08%0.86%6,0506,0546,0582016
20176,0646,0686,0721.38%3.47%6,0906,1066,1246,1426,1606,1780.98%2.67%6,1926,2066,2202017
20186,2326,2466,2601.24%3.19%6,2766,2946,3106,3266,3446,3601.11%2.93%6,3766,3906,4062018
20196,4226,4386,4541.16%3.03%6,4706,4866,5026,5206,5366,5520.70%2.10%6,5646,5746,5862019
20206,5986,6106,6201.01%2.73%6,6346,6506,6666,6806,6966,7100.53%1.76%6,7206,7306,7402020
20216,7506,7606,7700.84%2.39%6,7846,7966,8106,8246,8386,8501.77%4.25%6,8746,8986,9222021
20226,9466,9726,9963.56%7.84%7,0407,0867,1327,1787,2247,2704.81%10.35%7,3327,3947,4562022
20237,5187,5827,6463.24%7.20%7,6927,7367,7827,8287,8747,9221.69%4.09%7,9487,9768,0022023
20248,0308,0568,0841.97%4.65%8,1168,1468,1788,2088,2408,272

From $5,000 to $8,272 over 15.5 years = 3.27% average annual increase compounded semi-annually.

Generated  11/01/23  07:38