| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 233 | 4.335,53 | 18,61 | 3 |
| 2007 | 182 | 3.807,85 | 20,92 | 3 |
| 2008 | 160 | 3.346,42 | 20,92 | 3 |
| 2009 | 380 | 10.794,09 | 28,41 | 6 |
| 2010 | 490 | 12.184,11 | 24,87 | 8 |
| 2011 | 370 | 10.375,49 | 28,04 | 4 |
| 2012 | 578 | 16.186,97 | 28,01 | 7 |
| 2013 | 576 | 14.530,93 | 25,23 | 7 |
| 2014 | 572 | 17.558,59 | 30,70 | 6 |
| 2015 | 629 | 20.608,19 | 32,76 | 7 |
| 2016 | 649 | 21.798,55 | 33,59 | 6 |
| 2017 | 586 | 17.939,00 | 30,61 | 6 |
| 2018 | 576 | 17.170,37 | 29,81 | 6 |
| 2019 | 564 | 16.767,12 | 29,73 | 6 |
| 2020 | 570 | 18.824,32 | 33,03 | 7 |
| 2021 | 530 | 17.674,13 | 33,35 | 7 |
| 2022 | 452 | 15.653,37 | 34,63 | 6 |
| 2023 | 437 | 13.561,56 | 31,03 | 6 |
| 2024 | 367 | 11.030,24 | 30,06 | 6 |
| totale | 8.901 | 264.146,83 | 29,68 | 110 |