| Year | Unit-I | Unit-II | Unit-III | Unit-IV |
|---|---|---|---|---|
| 2022-23 | 97.08 | 87.89 | 90.25 | 68.28 |
| 2021-22 | 84.14 | 78.19 | 92.35 | 94.39 |
| 2020-21 | 91.70 | 93.23 | 80.14 | 83.37 |
| 2019-20 | 92.15 | 90.85 | 81.58 | 88.06 |
| 2018-19 | 89.66 | 90.87 | 83.34 | 78.32 |
| 2017-18 | 87.49 | 98.26 | 92.08 | 98.61 |
| 2016-17 | 89.44 | 89.52 | 65.71 | 89.32 |
| 2015-16 | 93.29 | 93.27 | 63.92 | 98.97 |
| 2014-15 | 98.3 | 98.25 | 81.09 | 89.27 |
| 2013-14 | 91.85 | 94.11 | 99.18 | 98.63 |
| 2012-13 | 97.03 | 91.46 | 55.77 | 94.05 |
| 2011-12 | 92.52 | 94.50 | 98.95 | 99.04 |
| 2010-11 | 92.45 | 88.47 | 91.51 | 92.28 |
| 2009-10 | 97.72 | 92.08 | 97.86 | 92.64 |
| 2008-09 | 89.07 | 89.37 | 88.35 | 89.55 |
| 2007-08 | 90.54 | 92.01 | 80.36 | 98.06 |
| 2006-07 | 89.88 | 95.12 | 79.84 | 91.32 |
| 2005-06 | 62.36 | 71.23 | 81.98 | 59.85 |
| 2004-05 | 94.15 | 87.43 | 92.30 | 87.20 |
| 2003-04 | 78.80 | 76.19 | 65.06 | 61.79 |
| 2002-03 | 90 | 89.11 | 89.65 | 85.46 |
| 2001-02 | 77.02 | 75.84 | 94.85 | 85.57 |
| 2000-01 | 64.48 | 83.39 | 43.93 | -- |
| 1999-2000 | 76.32 | 62.24 | -- | -- |
