| Sr. no | Year | Cost Inflation Index |
| 1 | 2001-02 | 100 |
| 2 | 2002-03 | 105 |
| 3 | 2003-04 | 109 |
| 4 | 2004-05 | 113 |
| 5 | 2005-06 | 117 |
| 6 | 2006-07 | 122 |
| 7 | 2007-08 | 129 |
| 8 | 2008-09 | 137 |
| 9 | 2009-10 | 148 |
| 10 | 2010-11 | 167 |
| 11 | 2011-12 | 184 |
| 12 | 2012-13 | 200 |
| 13 | 2013-14 | 220 |
| 14 | 2014-15 | 240 |
| 15 | 2015-16 | 254 |
| 16 | 2016-17 | 264 |
| 17 | 2017-18 | 272 |
| 18 | 2018-19 | 280 |
| 19 | 2019-20 | 289 |
| 20 | 2020-21 | 301 |