Lord Birt – Votes and party alignment
| Year | Party alignment | Total votes |
|---|---|---|
| 2026 | 79.16% | 76 |
| 2025 | 69.19% | 227 |
| 2024 | 89.19% | 76 |
| 2023 | 75.00% | 167 |
| 2022 | 88.31% | 163 |
| 2021 | 68.82% | 143 |
| 2020 | 68.64% | 104 |
| 2019 | 85.78% | 67 |
| 2018 | 68.16% | 61 |
| 2017 | 67.80% | 58 |
| 2016 | 55.24% | 102 |
| 2015 | 73.17% | 68 |
| 2014 | 85.04% | 86 |
| 2013 | 65.56% | 87 |
| 2012 | 54.29% | 113 |
| 2011 | 71.32% | 131 |
| 2010 | 74.06% | 73 |
| 2009 | 36.53% | 90 |
| 2008 | 47.08% | 125 |
| 2007 | 46.50% | 100 |
| 2006 | 54.50% | 165 |
| 2005 | 7.69% | 90 |
| 2004 | 41.11% | 179 |
| 2003 | 77.06% | 229 |
| 2002 | 70.76% | 132 |
| 2001 | 87.18% | 82 |
| 2000 | 38.46% | 1 |