Oliver Heald – Votes and party alignment
| Year | Party alignment | Total votes |
|---|---|---|
| 2024 | 99.12% | 127 |
| 2023 | 99.40% | 256 |
| 2022 | 99.04% | 251 |
| 2021 | 98.24% | 242 |
| 2020 | 98.98% | 190 |
| 2019 | 94.50% | 181 |
| 2018 | 98.05% | 198 |
| 2017 | 99.12% | 170 |
| 2016 | 99.71% | 231 |
| 2015 | 98.84% | 218 |
| 2014 | 97.24% | 238 |
| 2013 | 98.49% | 264 |
| 2012 | 98.13% | 258 |
| 2011 | 98.70% | 253 |
| 2010 | 98.87% | 270 |
| 2009 | 99.79% | 263 |
| 2008 | 97.76% | 318 |
| 2007 | 98.52% | 237 |
| 2006 | 98.19% | 242 |
| 2005 | 98.96% | 247 |
| 2004 | 98.61% | 348 |
| 2003 | 99.00% | 371 |
| 2002 | 98.70% | 276 |
| 2001 | 99.94% | 129 |
| 2000 | 98.32% | 8 |
| 1999 | 98.17% | 11 |
| 1998 | 97.17% | 9 |
| 1997 | 98.25% | 3 |