Alan Duncan – Votes and party alignment
| Year | Party alignment | Total votes |
|---|---|---|
| 2019 | 94.54% | 179 |
| 2018 | 99.06% | 198 |
| 2017 | 99.86% | 170 |
| 2016 | 99.70% | 231 |
| 2015 | 98.01% | 218 |
| 2014 | 95.86% | 238 |
| 2013 | 97.00% | 264 |
| 2012 | 99.20% | 258 |
| 2011 | 98.98% | 253 |
| 2010 | 98.79% | 270 |
| 2009 | 98.90% | 263 |
| 2008 | 99.20% | 318 |
| 2007 | 97.52% | 237 |
| 2006 | 98.77% | 242 |
| 2005 | 99.26% | 247 |
| 2004 | 98.66% | 348 |
| 2003 | 99.29% | 371 |
| 2002 | 97.91% | 276 |
| 2001 | 98.69% | 129 |
| 2000 | 55.05% | 8 |
| 1999 | 78.13% | 11 |
| 1998 | 82.83% | 9 |
| 1997 | 98.25% | 3 |