Lord Mandelson – Votes and party alignment
| Year | Party alignment | Total votes |
|---|---|---|
| 2026 | n/a | 32 |
| 2025 | n/a | 227 |
| 2024 | 99.98% | 76 |
| 2023 | 99.96% | 167 |
| 2022 | 99.63% | 163 |
| 2021 | 97.45% | 143 |
| 2020 | 99.47% | 104 |
| 2019 | 99.70% | 67 |
| 2018 | 99.65% | 61 |
| 2017 | 94.54% | 58 |
| 2016 | 99.95% | 102 |
| 2015 | 98.51% | 68 |
| 2014 | 99.71% | 86 |
| 2013 | 98.39% | 87 |
| 2012 | 99.94% | 113 |
| 2011 | 99.98% | 131 |
| 2010 | 97.87% | 73 |
| 2009 | 97.04% | 90 |
| 2008 | 96.21% | 33 |
| 2004 | 99.29% | 222 |
| 2003 | 97.07% | 371 |
| 2002 | 97.67% | 276 |
| 2001 | 97.55% | 129 |
| 2000 | 97.51% | 8 |
| 1999 | 98.93% | 11 |
| 1998 | 98.74% | 9 |
| 1997 | 100.00% | 3 |