$25 I Bond with 3.30% Fixed Rate Purchased September 1999

 Jan
1
Feb
1
Mar
1
Infla
tion
Rate
Com
posite
Rate
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Infla
tion
Rate
Com
posite
Rate
Oct
1
Nov
1
Dec
1
1999 25.000.86%5.05%25.1025.2125.311999
200025.4225.5225.631.76%6.88%25.7725.9226.0726.2126.3626.511.91%7.18%26.6726.8226.982000
200127.1427.3027.461.52%6.39%27.6027.7527.9028.0428.1928.341.44%6.23%28.4928.6328.782001
200228.9329.0729.221.19%5.72%29.3629.5029.6329.7729.9130.060.28%3.87%30.1630.2530.352002
200330.4530.5430.641.23%5.80%30.7930.9331.0831.2331.3831.531.77%6.90%31.7131.8932.072003
200432.2532.4332.620.54%4.40%32.7432.8632.9833.1033.2233.341.19%5.72%33.5033.6533.812004
200533.9734.1334.291.33%6.00%34.4634.6334.8034.9735.1535.321.79%6.94%35.5235.7235.932005
200636.1336.3436.552.85%9.09%36.8237.1037.3737.6537.9338.210.50%4.32%38.3538.4838.622006
200738.7638.9039.041.55%6.45%39.2539.4639.6639.8740.0940.301.21%5.76%40.4940.6840.882007
200841.0741.2641.461.53%6.41%41.6841.9042.1242.3442.5642.792.42%8.22%43.0843.3743.662008
200943.9544.2544.552.46%8.30%44.8545.1645.4745.7746.0946.40-2.78%0.00%46.4046.4046.402009
201046.4046.4046.401.53%6.41%46.6446.8947.1447.3947.6447.890.77%4.87%48.0848.2848.472010
201148.6648.8649.060.37%4.05%49.2249.3949.5549.7249.8950.052.30%7.98%50.3850.7151.042011
201251.3751.7152.051.53%6.41%52.3252.6052.8853.1653.4453.721.10%5.54%53.9754.2154.462012
201354.7154.9655.210.88%5.09%55.4455.6755.9156.1456.3856.620.59%4.50%56.8357.0457.252013
201457.4757.6857.890.59%4.50%58.1158.3258.5458.7658.9759.190.92%5.17%59.4459.7059.952014
201560.2160.4660.720.74%4.80%60.9661.2061.4461.6961.9362.18-0.80%1.67%62.2762.3562.442015
201662.5362.6162.700.77%4.87%62.9563.2063.4663.7163.9764.230.08%3.46%64.4164.6064.782016
201764.9765.1565.341.38%6.11%65.6766.0066.3366.6667.0067.34

From $25.00 to $67.34 over 18.0 years = 5.58% average annual increase compounded semi-annually.

Generated  11/01/16  10:44