| Anno di imposta | Acconti versati | Imposta a credito | ||
|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | |
| 2022 | 4.481.886 | 15.677.240 | 23.436.669 | 25.773.934 |
| 2021 | 4.404.358 | 13.153.558 | 22.724.279 | 25.331.768 |
| 2020 | 4.423.857 | 13.520.659 | 22.332.903 | 24.343.037 |
| 2019 | 4.742.996 | 14.900.123 | 22.262.733 | 23.701.914 |
| 2018 | 4.680.530 | 15.099.551 | 21.737.580 | 22.206.263 |
| 2017 | 5.061.074 | 15.612.249 | 21.738.631 | 22.220.422 |
| 2016 | 5.240.891 | 15.802.570 | 21.159.239 | 20.593.758 |
| 2015 | 5.415.060 | 15.785.435 | 20.769.773 | 19.604.410 |
| 2014 | 5.656.060 | 16.104.351 | 20.609.021 | 19.039.319 |
| 2013 | 5.737.158 | 16.292.481 | 20.063.356 | 18.344.176 |
| 2012 | 7.304.075 | 17.784.501 | 20.909.657 | 18.342.346 |
| 2011 | 7.002.728 | 16.650.347 | 18.181.453 | 15.535.929 |
| 2010 | 7.201.421 | 19.007.517 | 18.735.158 | 16.810.997 |
| 2009 | 7.269.190 | 17.054.716 | 17.321.896 | 14.851.382 |
| 2008 | 7.564.291 | 21.180.920 | 18.251.419 | 15.960.547 |
| 2007 | 7.250.512 | 20.519.063 | 17.028.092 | 13.904.483 |
