$500 I Bond with 3.30% Fixed Rate Purchased May 1999

 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
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Infla
tion
Rate
Com
posite
Rate
Dec
1
1999 500.000.86%5.05%502.00504.20506.20508.40510.40512.601.76%6.88%515.401999
2000518.40521.40524.20527.20530.201.91%7.18%533.40536.40539.60542.80546.00549.201.52%6.39%552.002000
2001555.00558.00560.80563.80566.801.44%6.23%569.80572.60575.60578.60581.40584.401.19%5.72%587.202001
2002590.00592.60595.40598.20601.200.28%3.87%603.20605.00607.00609.00610.80612.801.23%5.80%615.802002
2003618.60621.60624.60627.60630.601.77%6.90%634.20637.80641.40645.00648.60652.400.54%4.40%654.802003
2004657.20659.60662.00664.40666.801.19%5.72%670.00673.00676.20679.40682.60685.801.33%6.00%689.202004
2005692.60696.00699.40703.00706.401.79%6.94%710.40714.40718.60722.60726.80731.002.85%9.09%736.402005
2006742.00747.40753.00758.60764.200.50%4.32%767.00769.60772.40775.20778.00780.801.55%6.45%785.002006
2007789.20793.20797.40801.80806.001.21%5.76%809.80813.60817.60821.40825.20829.201.53%6.41%833.602007
2008838.00842.40846.80851.20855.802.42%8.22%861.60867.40873.20879.00885.00891.002.46%8.30%897.002008
2009903.20909.40915.40921.80928.00-2.78%0.00%928.00928.00928.00928.00928.00928.001.53%6.41%932.802009
2010937.80942.80947.80952.80957.800.77%4.87%961.60965.60969.40973.20977.20981.200.37%4.05%984.402010
2011987.80991.00994.40997.801,001.002.30%7.98%1,007.601,014.201,020.801,027.401,034.201,041.001.53%6.41%1,046.402011
20121,052.001,057.601,063.201,068.801,074.401.10%5.54%1,079.401,084.201,089.201,094.201,099.201,104.200.88%5.09%1,108.802012
20131,113.401,118.201,122.801,127.601,132.400.59%4.50%1,136.601,140.801,145.001,149.401,153.601,157.800.59%4.50%1,162.202013
20141,166.401,170.801,175.201,179.401,183.800.92%5.17%1,188.801,194.001,199.001,204.201,209.201,214.400.74%4.80%1,219.202014
20151,224.001,228.801,233.801,238.601,243.60-0.80%1.67%1,245.401,247.001,248.801,250.601,252.201,254.000.77%4.87%1,259.002015
20161,264.001,269.201,274.201,279.401,284.600.08%3.46%1,288.201,292.001,295.601,299.401,303.001,306.801.38%6.11%1,313.402016
20171,320.001,326.601,333.201,340.001,346.800.98%5.29%1,352.601,358.601,364.401,370.401,376.401,382.401.24%5.82%1,389.002017
20181,395.601,402.401,409.001,415.801,422.601.11%5.56%1,429.201,435.601,442.201,448.801,455.401,462.20

From $500.00 to $1,462.20 over 19.5 years = 5.58% average annual increase compounded semi-annually.

Generated  05/01/18  10:10