| Year | Western | Central | Eastern | Hills | Bundelkhand | State |
| 2001 | 28.5 | 28.2 | 29.6 | 20.0 | 22.1 | 28.2 |
| 2002 | 28.3 | 27.9 | 29.3 | 19.5 | 21.4 | 27.9 |
| 2003 | 28.0 | 27.5 | 28.9 | 19.2 | 20.7 | 27.6 |
| 2004 | 27.6 | 27.1 | 28.4 | 18.9 | 20.0 | 27.1 |
| 2005 | 27.0 | 26.3 | 27.6 | 18.6 | 19.4 | 26.4 |
| 2006 | 26.4 | 25.6 | 26.9 | 18.5 | 18.8 | 25.8 |
| 2007 | 25.5 | 24.7 | 25.9 | 18.5 | 18.5 | 24.9 |
| 2008 | 24.6 | 23.8 | 24.9 | 18.5 | 18.2 | 24.1 |
| 2009 | 23.8 | 22.8 | 24.0 | 18.4 | 18.1 | 23.2 |
| 2010 | 22.9 | 21.9 | 23.0 | 18.3 | 18.1 | 22.4 |
| 2011 | 22.1 | 21.1 | 22.1 | 18.2 | 18.1 | 21.6 |
| 2012 | 21.4 | 20.3 | 21.3 | 17.8 | 18.2 | 20.9 |
| 2013 | 20.8 | 19.7 | 20.7 | 17.3 | 18.3 | 20.3 |
| 2014 | 20.1 | 19.1 | 20.0 | 16.7 | 18.3 | 19.7 |
| 2015 | 19.6 | 18.6 | 19.5 | 16.1 | 18.1 | 19.2 |
| 2016 | 19.2 | 18.2 | 19.2 | 15.5 | 17.9 | 18.8 |