1867–2025
The line graph provides the following statistics:
| Date of election | Voter turnout (%) |
|---|---|
| 1867 | 73.1 |
| 1872 | 70.3 |
| 1874 | 69.6 |
| 1878 | 69.1 |
| 1882 | 70.3 |
| 1887 | 70.1 |
| 1891 | 64.4 |
| 1896 | 62.9 |
| 1900 | 77.4 |
| 1904 | 71.6 |
| 1908 | 70.3 |
| 1911 | 70.2 |
| 1917 | 75.0 |
| 1921 | 67.7 |
| 1925 | 66.4 |
| 1926 | 67.7 |
| 1930 | 73.5 |
| 1935 | 74.2 |
| 1940 | 69.9 |
| 1945 | 75.3 |
| 1949 | 73.8 |
| 1953 | 67.5 |
| 1957 | 74.1 |
| 1958 | 79.4 |
| 1962 | 79.0 |
| 1963 | 79.2 |
| 1965 | 74.8 |
| 1968 | 75.7 |
| 1972 | 76.7 |
| 1974 | 71.0 |
| 1979 | 75.7 |
| 1980 | 69.3 |
| 1984 | 75.3 |
| 1988 | 75.3 |
| 1993 | 69.6 |
| 1997 | 67.0 |
| 2000 | 61.2 |
| 2004 | 60.9 |
| 2006 | 64.7 |
| 2008 | 58.8 |
| 2011 | 61.1 |
| 2015 | 68.3 |
| 2019 | 67.0 |
| 2021 | 62.6 |
| 2025 | 69.0 |