$200 I Bond with 3.30% Fixed Rate Purchased September 1999

 Jan
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Feb
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Mar
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Rate
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Rate
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May
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Jul
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Sep
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Com
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Rate
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1999 200.000.86%5.05%200.80201.68202.481999
2000203.36204.16205.041.76%6.88%206.16207.36208.56209.68210.88212.081.91%7.18%213.36214.56215.842000
2001217.12218.40219.681.52%6.39%220.80222.00223.20224.32225.52226.721.44%6.23%227.92229.04230.242001
2002231.44232.56233.761.19%5.72%234.88236.00237.04238.16239.28240.480.28%3.87%241.28242.00242.802002
2003243.60244.32245.121.23%5.80%246.32247.44248.64249.84251.04252.241.77%6.90%253.68255.12256.562003
2004258.00259.44260.960.54%4.40%261.92262.88263.84264.80265.76266.721.19%5.72%268.00269.20270.482004
2005271.76273.04274.321.33%6.00%275.68277.04278.40279.76281.20282.561.79%6.94%284.16285.76287.442005
2006289.04290.72292.402.85%9.09%294.56296.80298.96301.20303.44305.680.50%4.32%306.80307.84308.962006
2007310.08311.20312.321.55%6.45%314.00315.68317.28318.96320.72322.401.21%5.76%323.92325.44327.042007
2008328.56330.08331.681.53%6.41%333.44335.20336.96338.72340.48342.322.42%8.22%344.64346.96349.282008
2009351.60354.00356.402.46%8.30%358.80361.28363.76366.16368.72371.20-2.78%0.00%371.20371.20371.202009
2010371.20371.20371.201.53%6.41%373.12375.12377.12379.12381.12383.120.77%4.87%384.64386.24387.762010
2011389.28390.88392.480.37%4.05%393.76395.12396.40397.76399.12400.402.30%7.98%403.04405.68408.322011
2012410.96413.68416.401.53%6.41%418.56420.80423.04425.28427.52429.761.10%5.54%431.76433.68435.682012
2013437.68439.68441.680.88%5.09%443.52445.36447.28449.12451.04452.960.59%4.50%454.64456.32458.002013
2014459.76461.44463.120.59%4.50%464.88466.56468.32470.08471.76473.520.92%5.17%475.52477.60479.602014
2015481.68483.68485.760.74%4.80%487.68489.60491.52493.52495.44497.44-0.80%1.67%498.16498.80499.522015
2016500.24500.88501.600.77%4.87%503.60505.60507.68509.68511.76513.840.08%3.46%515.28516.80518.242016
2017519.76521.20522.721.38%6.11%525.36528.00530.64533.28536.00538.720.98%5.29%541.04543.44545.762017
2018548.16550.56552.961.24%5.82%555.60558.24560.96563.60566.32569.041.11%5.56%571.68574.24576.882018
2019579.52582.16584.88

From $200.00 to $584.88 over 19.5 years = 5.58% average annual increase compounded semi-annually.

Generated  05/01/18  10:10