| Anno di imposta | Imposta a debito | Imposta a credito | ||
|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | |
| 2021 | 476.727 | 10.871.562 | 422.666 | 6.736.686 |
| 2020 | 385.526 | 6.485.871 | 478.898 | 7.106.734 |
| 2019 | 482.705 | 6.323.818 | 410.378 | 6.838.529 |
| 2018 | 468.015 | 6.009.909 | 406.295 | 6.913.580 |
| 2017 | 405.848 | 5.336.354 | 443.639 | 7.299.271 |
| 2016 | 430.518 | 6.075.559 | 401.206 | 6.058.878 |
| 2015 | 432.686 | 6.363.111 | 389.803 | 5.485.286 |
| 2014 | 404.785 | 5.643.143 | 408.718 | 5.344.594 |
| 2013 | 381.168 | 4.973.928 | 427.914 | 6.378.422 |
| 2012 | 369.462 | 5.431.196 | 435.441 | 5.706.659 |
| 2011 | 420.925 | 6.105.650 | 380.456 | 5.176.136 |
| 2010 | 355.551 | 6.514.194 | 397.639 | 5.339.400 |
| 2009 | 318.094 | 5.651.833 | 423.482 | 5.852.153 |
| 2008 | 286.504 | 5.173.486 | 462.781 | 7.920.268 |
| 2007 | 340.671 | 8.188.922 | 385.237 | 5.623.404 |
