| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 49 | 737,49 | 15,05 | 3 |
| 2007 | 140 | 5.271,77 | 37,66 | 4 |
| 2008 | 43 | 866,78 | 20,16 | 4 |
| 2009 | 47 | 895,36 | 19,05 | 3 |
| 2010 | 472 | 12.289,92 | 26,04 | 5 |
| 2011 | 423 | 11.135,61 | 26,33 | 4 |
| 2012 | 460 | 14.169,20 | 30,80 | 6 |
| 2013 | 419 | 12.116,76 | 28,92 | 6 |
| 2014 | 442 | 17.437,45 | 39,45 | 6 |
| 2015 | 444 | 17.260,26 | 38,87 | 6 |
| 2016 | 445 | 17.271,09 | 38,81 | 6 |
| 2017 | 426 | 15.810,36 | 37,11 | 6 |
| 2018 | 390 | 13.427,80 | 34,43 | 6 |
| 2019 | 336 | 9.872,95 | 29,38 | 5 |
| 2020 | 355 | 14.028,36 | 39,52 | 6 |
| 2021 | 332 | 14.035,67 | 42,28 | 6 |
| 2022 | 258 | 9.712,08 | 37,64 | 6 |
| 2023 | 197 | 12.314,26 | 62,51 | 6 |
| 2024 | 163 | 5.918,43 | 36,31 | 6 |
| totale | 5.841 | 204.571,60 | 35,02 | 100 |