| Anno di imposta | Imposta a debito | Imposta a credito | ||
|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | |
| 2021 | 2.256 | 3.343.877 | 3.936 | 5.051.922 |
| 2020 | 1.837 | 1.181.372 | 4.249 | 6.039.753 |
| 2019 | 1.908 | 1.804.807 | 4.082 | 4.708.970 |
| 2018 | 2.018 | 1.453.653 | 3.873 | 5.746.707 |
| 2017 | 1.763 | 1.040.579 | 3.991 | 6.176.377 |
| 2016 | 2.117 | 1.721.050 | 3.576 | 5.855.648 |
| 2015 | 2.286 | 2.138.658 | 3.329 | 4.852.378 |
| 2014 | 1.974 | 1.449.440 | 3.397 | 4.182.821 |
| 2013 | 1.802 | 1.047.844 | 3.646 | 6.634.513 |
| 2012 | 1.487 | 2.853.949 | 3.952 | 4.646.300 |
| 2011 | 2.077 | 1.474.648 | 3.360 | 5.469.637 |
| 2010 | 1.767 | 1.381.227 | 3.365 | 5.536.053 |
| 2009 | 1.413 | 1.368.503 | 3.658 | 4.719.008 |
| 2008 | 1.181 | 2.026.740 | 3.647 | 6.778.361 |
| 2007 | 1.611 | 2.056.734 | 2.975 | 4.264.297 |
