$100 I Bond with 1.20% Fixed Rate Purchased January 2008

 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
2008100.001.53%4.28%100.36100.72101.08101.44101.80102.162.42%6.07%102.68103.20103.68104.20104.722008
2009105.282.46%6.15%105.80106.36106.88107.44107.96108.52-2.78%0.00%108.52108.52108.52108.52108.522009
2010108.521.53%4.28%108.92109.28109.68110.08110.44110.840.77%2.75%111.08111.36111.60111.84112.122010
2011112.360.37%1.94%112.56112.72112.92113.08113.28113.442.30%5.83%114.00114.52115.08115.64116.202011
2012116.761.53%4.28%117.16117.60118.00118.40118.84119.241.10%3.41%119.56119.92120.24120.60120.922012
2013121.280.88%2.97%121.56121.88122.16122.48122.76123.080.59%2.39%123.32123.56123.80124.04124.322013
2014124.560.59%2.39%124.80125.04125.32125.56125.80126.040.92%3.05%126.36126.68127.00127.32127.642014
2015127.960.74%2.69%128.24128.52128.80129.12129.40129.68-0.80%0.00%129.68129.68129.68129.68129.682015
2016129.680.77%2.75%129.96130.28130.56130.88131.16131.480.08%1.36%131.64131.76131.92132.08132.242016
2017132.361.38%3.98%132.80133.24133.68134.12134.56135.000.98%3.17%135.36135.72136.08136.44136.802017
2018137.121.24%3.69%137.52137.96138.36138.80139.24139.641.11%3.43%140.04140.44140.84141.24141.642018
2019142.04

From $100.00 to $142.04 over 11.0 years = 3.22% average annual increase compounded semi-annually.

Generated  05/01/18  10:10