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

 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
1
Dec
1
1999 200.000.86%5.05%200.80201.68202.48203.36204.161999
2000205.041.76%6.88%206.16207.36208.56209.68210.88212.081.91%7.18%213.36214.56215.84217.12218.402000
2001219.681.52%6.39%220.80222.00223.20224.32225.52226.721.44%6.23%227.92229.04230.24231.44232.562001
2002233.761.19%5.72%234.88236.00237.04238.16239.28240.480.28%3.87%241.28242.00242.80243.60244.322002
2003245.121.23%5.80%246.32247.44248.64249.84251.04252.241.77%6.90%253.68255.12256.56258.00259.442003
2004260.960.54%4.40%261.92262.88263.84264.80265.76266.721.19%5.72%268.00269.20270.48271.76273.042004
2005274.321.33%6.00%275.68277.04278.40279.76281.20282.561.79%6.94%284.16285.76287.44289.04290.722005
2006292.402.85%9.09%294.56296.80298.96301.20303.44305.680.50%4.32%306.80307.84308.96310.08311.202006
2007312.321.55%6.45%314.00315.68317.28318.96320.72322.401.21%5.76%323.92325.44327.04328.56330.082007
2008331.681.53%6.41%333.44335.20336.96338.72340.48342.322.42%8.22%344.64346.96349.28351.60354.002008
2009356.402.46%8.30%358.80361.28363.76366.16368.72371.20-2.78%0.00%371.20371.20371.20371.20371.202009
2010371.201.53%6.41%373.12375.12377.12379.12381.12383.120.77%4.87%384.64386.24387.76389.28390.882010
2011392.480.37%4.05%393.76395.12396.40397.76399.12400.402.30%7.98%403.04405.68408.32410.96413.682011
2012416.401.53%6.41%418.56420.80423.04425.28427.52429.761.10%5.54%431.76433.68435.68437.68439.682012
2013441.680.88%5.09%443.52445.36447.28449.12451.04452.960.59%4.50%454.64456.32458.00459.76461.442013
2014463.120.59%4.50%464.88466.56468.32470.08471.76473.520.92%5.17%475.52477.60479.60481.68483.682014
2015485.760.74%4.80%487.68489.60491.52493.52495.44497.44-0.80%1.67%498.16498.80499.52500.24500.882015
2016501.600.77%4.87%503.60505.60507.68509.68511.76513.840.08%3.46%515.28516.80518.24519.76521.202016
2017522.721.38%6.11%525.36528.00530.64533.28536.00538.720.98%5.29%541.04543.44545.76548.16550.562017
2018552.961.24%5.82%555.60558.24560.96563.60566.32569.041.11%5.56%571.68574.24576.88579.52582.162018
2019584.88

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

Generated  05/01/18  10:10