| 2025/26 | 3 | EFL League One | 8 | 46 | 22 | 7 | 17 | 75:63 | +12 | 73 | |
| 2024/25 | 2 | EFL Championship | 23 | 46 | 11 | 13 | 22 | 51:88 | -37 | 46 | |
| 2023/24 | 2 | EFL Championship | 21 | 46 | 13 | 12 | 21 | 59:70 | -11 | 51 | |
| 2022/23 | 3 | EFL League One | 1 | 46 | 31 | 8 | 7 | 82:47 | +35 | 101 |  |
| 2021/22 | 3 | EFL League One | 7 | 46 | 23 | 11 | 12 | 68:48 | +20 | 80 | |
| 2020/21 | 3 | EFL League One | 18 | 46 | 14 | 11 | 21 | 53:80 | -27 | 53 | |
| 2018/19 | 3 | EFL League One | 21 | 46 | 13 | 11 | 22 | 56:80 | -24 | 50 | |
| 2017/18 | 3 | EFL League One | 7 | 46 | 19 | 11 | 16 | 58:59 | -1 | 68 | |
| 2015/16 | 4 | EFL League Two | 5 | 46 | 24 | 9 | 13 | 72:46 | +26 | 81 | |
| 2014/15 | 4 | EFL League Two | 7 | 46 | 20 | 11 | 15 | 55:37 | +18 | 71 | |
| 2013/14 | 4 | EFL League Two | 10 | 46 | 16 | 12 | 18 | 51:58 | -7 | 60 | |
| 2012/13 | 4 | EFL League Two | 21 | 46 | 13 | 13 | 20 | 46:55 | -9 | 52 | |
| 2011/12 | 4 | EFL League Two | 21 | 46 | 10 | 16 | 20 | 47:64 | -17 | 46 | |
| 2010/11 | 3 | EFL League One | 23 | 46 | 15 | 7 | 24 | 51:74 | -23 | 52 | |
| 2009/10 | 2 | EFL Championship | 23 | 46 | 11 | 8 | 27 | 43:68 | -25 | 41 | |
| 2008/09 | 2 | EFL Championship | 21 | 46 | 13 | 12 | 21 | 44:57 | -13 | 51 | |
| 2007/08 | 2 | EFL Championship | 10 | 46 | 17 | 13 | 16 | 60:50 | +10 | 64 | |
| 2006/07 | 2 | EFL Championship | 11 | 46 | 17 | 16 | 13 | 63:62 | +1 | 67 | |
| 2005/06 | 2 | EFL Championship | 14 | 46 | 13 | 17 | 16 | 39:46 | -7 | 56 | |
| 2004/05 | 2 | EFL Championship | 17 | 46 | 14 | 11 | 21 | 52:64 | -12 | 53 | |
| 1991/92 | 2 | Football League Second Division | 22 | 46 | 13 | 9 | 24 | 42:64 | -22 | 48 | |
| 1990/91 | 2 | Football League Second Division | 18 | 46 | 12 | 17 | 17 | 54:68 | -14 | 53 | |
| 1989/90 | 2 | Football League Second Division | 16 | 46 | 14 | 13 | 19 | 58:63 | -5 | 55 | |
| 1988/89 | 2 | Football League Second Division | 18 | 46 | 14 | 12 | 20 | 55:66 | -11 | 54 | |
| 1987/88 | 2 | Football League Second Division | 16 | 44 | 16 | 8 | 20 | 65:67 | -2 | 56 | |
| 1986/87 | 2 | Football League Second Division | 7 | 42 | 16 | 13 | 13 | 62:57 | +5 | 61 | |
| 1976/77 | 2 | Football League Second Division | 21 | 42 | 8 | 16 | 18 | 46:65 | -19 | 40 | |
| 1975/76 | 2 | Football League Second Division | 16 | 42 | 13 | 12 | 17 | 48:54 | -6 | 51 | |
