$200 I Bond with 3.60% Fixed Rate Purchased July 2000

 Jan
1
Infla
tion
Rate
Com
posite
Rate
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Infla
tion
Rate
Com
posite
Rate
Aug
1
Sep
1
Oct
1
Nov
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Dec
1
2000 200.001.91%7.49%201.20202.48203.68204.96206.242000
2001207.521.52%6.69%208.64209.84210.96212.16213.28214.481.44%6.53%215.60216.80217.92219.12220.322001
2002221.521.19%6.02%222.64223.76224.80225.92227.04228.160.28%4.17%228.96229.76230.56231.36232.082002
2003232.881.23%6.10%234.08235.20236.40237.60238.80240.001.77%7.20%241.44242.88244.32245.76247.202003
2004248.640.54%4.70%249.60250.56251.52252.56253.52254.481.19%6.02%255.76257.04258.32259.60260.882004
2005262.161.33%6.31%263.52264.88266.24267.68269.04270.401.79%7.24%272.00273.60275.28276.88278.562005
2006280.162.85%9.40%282.32284.48286.64288.88291.12293.360.50%4.62%294.48295.60296.72297.84298.962006
2007300.161.55%6.76%301.84303.52305.20306.88308.56310.321.21%6.06%311.84313.44314.96316.56318.162007
2008319.761.53%6.72%321.52323.28325.12326.88328.72330.482.42%8.53%332.80335.12337.44339.84342.162008
2009344.562.46%8.61%346.96349.44351.92354.40356.88359.36-2.78%0.00%359.36359.36359.36359.36359.362009
2010359.361.53%6.72%361.36363.36365.36367.36369.36371.440.77%5.17%373.04374.64376.24377.84379.442010
2011381.040.37%4.35%382.40383.76385.20386.56387.92389.362.30%8.28%392.00394.64397.36400.00402.722011
2012405.441.53%6.72%407.68409.92412.16414.48416.80419.041.10%5.84%421.04423.04425.12427.12429.202012
2013431.280.88%5.39%433.20435.12437.04438.96440.96442.880.59%4.80%444.64446.40448.16449.92451.762013
2014453.520.59%4.80%455.28457.12458.96460.72462.56464.400.92%5.47%466.48468.56470.72472.80474.962014
2015477.120.74%5.11%479.12481.12483.20485.20487.28489.28-0.80%1.97%490.08490.88491.68492.48493.282015
2016494.080.77%5.17%496.16498.32500.40502.56504.72506.880.08%3.76%508.48510.00511.60513.20514.802016
2017516.401.38%6.41%519.12521.84524.64527.36530.16532.960.98%5.60%535.44537.92540.40542.88545.362017
2018547.921.24%6.12%550.64553.44556.24559.04561.84564.721.11%5.86%567.44570.16572.96575.68578.482018
2019581.281.16%5.96%584.16586.96589.84592.80595.68598.640.70%5.03%601.12603.60606.16608.64611.202019
2020613.681.01%5.66%616.56619.44622.32625.20628.08631.040.53%4.68%633.44635.92638.40640.88643.362020
2021645.84

From $200.00 to $645.84 over 20.5 years = 5.80% average annual increase compounded semi-annually.

Generated  05/01/20  10:18