Baroness Primarolo – Votes and party alignment
| Year | Party alignment | Total votes |
|---|---|---|
| 2025 | 99.74% | 218 |
| 2024 | 99.97% | 76 |
| 2023 | 99.98% | 167 |
| 2022 | 99.96% | 163 |
| 2021 | 98.09% | 143 |
| 2020 | 99.43% | 104 |
| 2019 | 99.75% | 67 |
| 2018 | 99.82% | 61 |
| 2017 | 100.00% | 58 |
| 2016 | 99.94% | 102 |
| 2015 | 100.00% | 72 |
| 2014 | n/a | 238 |
| 2013 | n/a | 264 |
| 2012 | n/a | 258 |
| 2011 | n/a | 253 |
| 2010 | 98.76% | 270 |
| 2009 | 98.21% | 263 |
| 2008 | 97.75% | 318 |
| 2007 | 97.02% | 237 |
| 2006 | 98.33% | 242 |
| 2005 | 97.16% | 247 |
| 2004 | 98.92% | 348 |
| 2003 | 98.47% | 371 |
| 2002 | 98.32% | 276 |
| 2001 | 98.02% | 129 |
| 2000 | 100.00% | 8 |
| 1999 | 98.53% | 11 |
| 1998 | 99.80% | 9 |
| 1997 | n/a | 3 |