$75 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 75.000.86%5.05%75.3075.6375.931999
200076.2676.5676.891.76%6.88%77.3177.7678.2178.6379.0879.531.91%7.18%80.0180.4680.942000
200181.4281.9082.381.52%6.39%82.8083.2583.7084.1284.5785.021.44%6.23%85.4785.8986.342001
200286.7987.2187.661.19%5.72%88.0888.5088.8989.3189.7390.180.28%3.87%90.4890.7591.052002
200391.3591.6291.921.23%5.80%92.3792.7993.2493.6994.1494.591.77%6.90%95.1395.6796.212003
200496.7597.2997.860.54%4.40%98.2298.5898.9499.3099.66100.021.19%5.72%100.50100.95101.432004
2005101.91102.39102.871.33%6.00%103.38103.89104.40104.91105.45105.961.79%6.94%106.56107.16107.792005
2006108.39109.02109.652.85%9.09%110.46111.30112.11112.95113.79114.630.50%4.32%115.05115.44115.862006
2007116.28116.70117.121.55%6.45%117.75118.38118.98119.61120.27120.901.21%5.76%121.47122.04122.642007
2008123.21123.78124.381.53%6.41%125.04125.70126.36127.02127.68128.372.42%8.22%129.24130.11130.982008
2009131.85132.75133.652.46%8.30%134.55135.48136.41137.31138.27139.20-2.78%0.00%139.20139.20139.202009
2010139.20139.20139.201.53%6.41%139.92140.67141.42142.17142.92143.670.77%4.87%144.24144.84145.412010
2011145.98146.58147.180.37%4.05%147.66148.17148.65149.16149.67150.152.30%7.98%151.14152.13153.122011
2012154.11155.13156.151.53%6.41%156.96157.80158.64159.48160.32161.161.10%5.54%161.91162.63163.382012
2013164.13164.88165.630.88%5.09%166.32167.01167.73168.42169.14169.860.59%4.50%170.49171.12171.752013
2014172.41173.04173.670.59%4.50%174.33174.96175.62176.28176.91177.570.92%5.17%178.32179.10179.852014
2015180.63181.38182.160.74%4.80%182.88183.60184.32185.07185.79186.54-0.80%1.67%186.81187.05187.322015
2016187.59187.83188.100.77%4.87%188.85189.60190.38191.13191.91192.690.08%3.46%193.23193.80194.342016
2017194.91195.45196.021.38%6.11%197.01198.00198.99199.98201.00202.020.98%5.29%202.89203.79204.662017
2018205.56206.46207.361.24%5.82%208.35209.34210.36211.35212.37213.391.11%5.56%214.38215.34216.332018
2019217.32218.31219.33

From $75.00 to $219.33 over 19.5 years = 5.58% average annual increase compounded semi-annually.

Generated  05/01/18  10:10