| Anno di imposta | Base imponibile | Totale imposta | ||
|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | |
| 2021 | 1.947.371 | 503.065.372 | 1.933.646 | 26.226.431 |
| 2020 | 1.772.933 | 416.450.830 | 1.758.042 | 22.497.628 |
| 2019 | 2.085.495 | 467.975.971 | 2.069.312 | 24.784.387 |
| 2018 | 2.242.537 | 457.285.661 | 2.227.862 | 24.121.384 |
| 2017 | 2.110.248 | 437.407.429 | 2.095.154 | 23.183.238 |
| 2016 | 2.276.791 | 422.815.135 | 2.258.840 | 22.493.073 |
| 2015 | 2.708.497 | 444.657.024 | 2.692.987 | 23.289.050 |
| 2014 | 2.833.421 | 605.801.714 | 2.820.211 | 30.025.601 |
| 2013 | 2.970.665 | 617.979.006 | 2.960.053 | 30.519.860 |
| 2012 | 3.100.685 | 643.903.566 | 3.088.516 | 32.060.983 |
| 2011 | 3.151.969 | 673.418.620 | 3.141.280 | 33.134.688 |
| 2010 | 3.199.011 | 667.992.704 | 3.189.091 | 32.545.994 |
| 2009 | 3.254.645 | 654.708.780 | 3.244.687 | 31.933.706 |
| 2008 | 3.470.962 | 700.568.055 | 3.459.016 | 33.767.433 |
| 2007 | 3.950.438 | 730.703.831 | 3.928.506 | 36.836.841 |
