| # | Tier | Division | G | W | D | L | GF | GA | Pts | +- | ||
| 1979-80 | English National League | 38 | 13 | 10 | 15 | 46 | 49 | 36 | -3 | |||
| 1979-80 | English National League | 38 | 13 | 10 | 15 | 46 | 49 | 36 | -3 | |||
| 1980-81 | English National League | 38 | 14 | 6 | 18 | 60 | 64 | 34 | -4 | |||
| 1981-82 | English National League | 42 | 14 | 11 | 17 | 56 | 68 | 53 | -12 | |||
| 1982-83 | English National League | 42 | 11 | 7 | 24 | 63 | 99 | 40 | -36 | |||
| 1983-84 | English National League | 42 | 12 | 8 | 22 | 55 | 77 | 35 | -22 | |||
| 1984-85 | English National League | 42 | 6 | 11 | 25 | 44 | 87 | 25 | -43 | Relegated | ||
| 1985-86 | English Isthmian Premier | 42 | 28 | 7 | 7 | 92 | 48 | 91 | 44 | |||
| 1986-87 | English Isthmian Premier | 42 | 28 | 8 | 6 | 71 | 27 | 92 | 44 | |||
| 1987-88 | English Isthmian Premier | 42 | 24 | 9 | 9 | 66 | 34 | 81 | 32 | Promoted | ||
| 1988-89 | English National League | 40 | 15 | 11 | 14 | 68 | 67 | 56 | 1 | |||
| 1989-90 | English National League | 42 | 17 | 12 | 13 | 62 | 54 | 63 | 8 | |||
| 1990-91 | English National League | 42 | 13 | 11 | 18 | 58 | 58 | 50 | 0 | |||
| 1991-92 | English National League | 42 | 11 | 14 | 17 | 22 | 21 | 47 | 1 | |||
| 1992-93 | English National League | 42 | 18 | 12 | 12 | 59 | 49 | 66 | 10 | |||
| 1993-94 | English National League | 42 | 14 | 9 | 19 | 49 | 62 | 51 | -13 | |||
| 1994-95 | English National League | 42 | 8 | 14 | 20 | 50 | 71 | 37 | -21 | Relegated | ||
| 1995-96 | English Isthmian Premier | 42 | 23 | 11 | 8 | 83 | 51 | 80 | 32 | |||
| 1996-97 | English Isthmian Premier | 42 | 31 | 8 | 3 | 83 | 34 | 101 | 49 | Promoted | ||
| 1997-98 | English National League | 42 | 17 | 8 | 17 | 73 | 62 | 59 | 11 | |||
| 1998-99 | English National League | 42 | 20 | 11 | 11 | 68 | 54 | 71 | 14 | |||
| 1999-00 | English National League | 42 | 18 | 10 | 14 | 60 | 63 | 64 | -3 | |||
| 2000-01 | English National League | 42 | 24 | 8 | 10 | 73 | 50 | 80 | 23 | |||
| 2001-02 | English National League | 42 | 19 | 13 | 10 | 66 | 53 | 70 | 13 | |||
| 2002-03 | English National League | 42 | 28 | 11 | 3 | 100 | 37 | 95 | 63 | Promoted | ||
| 2003-04 | English League Two | 46 | 23 | 5 | 18 | 70 | 57 | 74 | 13 | |||
| 2004-05 | English League Two | 46 | 25 | 8 | 13 | 90 | 65 | 83 | 25 | Promoted | ||
| 2005-06 | English League One | 46 | 15 | 11 | 20 | 54 | 62 | 56 | -8 | |||
| 2006-07 | English League One | 46 | 23 | 10 | 13 | 55 | 39 | 79 | 16 | |||
| 2007-08 | English League One | 46 | 14 | 10 | 22 | 38 | 59 | 52 | -21 | |||
| 2008-09 | English League One | 46 | 12 | 15 | 19 | 41 | 66 | 51 | -25 | |||
| 2009-10 | English League One | 46 | 13 | 14 | 19 | 55 | 59 | 53 | -4 | |||
| 2010-11 | English League One | 46 | 16 | 11 | 19 | 56 | 66 | 59 | -10 | |||
| 2011-12 | English League One | 46 | 14 | 12 | 20 | 59 | 80 | 54 | -21 | |||
| 2012-13 | English League One | 46 | 23 | 8 | 15 | 71 | 56 | 77 | 15 | Promoted | ||
| 2013-14 | English Championship | 46 | 8 | 13 | 25 | 44 | 75 | 37 | -31 | Relegated | ||
| 2014-15 | English League One | 46 | 10 | 10 | 26 | 36 | 75 | 40 | -39 | Relegated | ||
| 2015-16 | English League Two | 46 | 11 | 15 | 20 | 43 | 59 | 48 | -16 | |||
| 2016-17 | English League Two | 46 | 11 | 17 | 18 | 49 | 64 | 50 | -15 | |||
| 2017-18 | English League Two | 46 | 12 | 12 | 22 | 59 | 75 | 48 | -16 | |||
| 2018-19 | English League Two | 46 | 9 | 13 | 24 | 41 | 66 | 40 | -25 | Relegated | ||
| 2019-20 | English National League | 37 | 17 | 9 | 11 | 61 | 44 | 60 | 17 | |||
| 2020-21 | English National League | 42 | 15 | 7 | 20 | 58 | 68 | 52 | -10 | |||
| 2021-22 | English National League | 44 | 15 | 14 | 15 | 43 | 46 | 59 | -3 | |||
| 2022-23 | English National League | 46 | 7 | 19 | 20 | 35 | 60 | 40 | -25 | Relegated |