Baroness O'Neill – Votes and party alignment
| Year | Party alignment | Total votes |
|---|---|---|
| 2026 | n/a | 76 |
| 2025 | 67.07% | 227 |
| 2024 | 78.08% | 76 |
| 2023 | 80.97% | 167 |
| 2022 | 75.43% | 163 |
| 2021 | 60.25% | 143 |
| 2020 | 69.69% | 104 |
| 2019 | 78.82% | 67 |
| 2018 | 68.69% | 61 |
| 2017 | 66.51% | 58 |
| 2016 | 72.91% | 102 |
| 2015 | 63.16% | 68 |
| 2014 | 70.26% | 86 |
| 2013 | 65.66% | 87 |
| 2012 | 66.59% | 113 |
| 2011 | 68.28% | 131 |
| 2010 | 71.34% | 73 |
| 2009 | 73.86% | 90 |
| 2008 | 65.93% | 125 |
| 2007 | 81.36% | 100 |
| 2006 | 65.62% | 165 |
| 2005 | 78.44% | 90 |
| 2004 | 61.17% | 179 |
| 2003 | 63.04% | 229 |
| 2002 | 64.10% | 132 |
| 2001 | 51.83% | 82 |
| 2000 | 25.86% | 2 |