$500 I Bond with 3.30% Fixed Rate Purchased November 1998

 Jan
1
Feb
1
Mar
1
Apr
1
May
1
Infla
tion
Rate
Com
posite
Rate
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Infla
tion
Rate
Com
posite
Rate
Dec
1
1998 500.000.86%5.05%502.001998
1999504.20506.20508.40510.40512.600.86%5.05%514.80516.80519.00521.20523.40525.601.76%6.88%528.601999
2000531.60534.60537.60540.60543.601.91%7.18%546.80550.00553.20556.60559.80563.201.52%6.39%566.202000
2001569.20572.20575.20578.20581.201.44%6.23%584.20587.20590.20593.20596.20599.401.19%5.72%602.202001
2002605.00608.00610.80613.60616.600.28%3.87%618.60620.60622.60624.60626.60628.601.23%5.80%631.602002
2003634.60637.60640.60643.80646.801.77%6.90%650.40654.20657.80661.60665.40669.200.54%4.40%671.602003
2004674.00676.60679.00681.40684.001.19%5.72%687.20690.40693.80697.00700.20703.601.33%6.00%707.002004
2005710.60714.00717.60721.20724.801.79%6.94%729.00733.00737.20741.40745.60750.002.85%9.09%755.602005
2006761.20766.80772.60778.40784.000.50%4.32%786.80789.60792.40795.20798.00801.001.55%6.45%805.202006
2007809.60813.80818.20822.40826.801.21%5.76%830.80834.60838.60842.60846.60850.601.53%6.41%855.002007
2008859.60864.20868.60873.20877.802.42%8.22%883.80889.60895.60901.60907.80913.802.46%8.30%920.002008
2009926.20932.60939.00945.20951.80-2.78%0.00%951.80951.80951.80951.80951.80951.801.53%6.41%956.802009
2010961.80967.00972.00977.20982.400.77%4.87%986.40990.40994.20998.201,002.201,006.400.37%4.05%1,009.802010
20111,013.201,016.601,020.001,023.401,026.802.30%7.98%1,033.601,040.201,047.001,054.001,060.801,067.801.53%6.41%1,073.402011
20121,079.001,084.801,090.401,096.201,102.001.10%5.54%1,107.001,112.001,117.201,122.201,127.401,132.600.88%5.09%1,137.402012
20131,142.201,147.001,151.801,156.601,161.400.59%4.50%1,165.801,170.001,174.401,178.801,183.201,187.600.59%4.50%1,192.002013
20141,196.401,200.801,205.401,209.801,214.400.92%5.17%1,219.601,224.801,230.001,235.201,240.601,245.800.74%4.80%1,250.802014
20151,255.601,260.601,265.601,270.601,275.60-0.80%1.67%1,277.401,279.201,281.001,282.601,284.401,286.200.77%4.87%1,291.402015
20161,296.601,301.801,307.001,312.201,317.600.08%3.46%1,321.401,325.201,329.001,332.801,336.601,340.401.38%6.11%1,347.202016
20171,354.001,360.801,367.601,374.401,381.400.98%5.29%1,387.401,393.401,399.601,405.601,411.801,418.001.24%5.82%1,424.802017
20181,431.601,438.401,445.401,452.401,459.201.11%5.56%1,465.801,472.601,479.401,486.201,493.001,499.80

From $500.00 to $1,499.80 over 20.0 years = 5.57% average annual increase compounded semi-annually.

Generated  05/01/18  10:10