| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 211 | 3.401,32 | 16,12 | 2 |
| 2007 | 98 | 2.174,89 | 22,19 | 1 |
| 2008 | 50 | 1.261,73 | 25,23 | 1 |
| 2009 | 6 | 120,61 | 20,10 | 1 |
| 2010 | 49 | 1.028,76 | 21,00 | 2 |
| 2011 | 23 | 502,38 | 21,84 | 1 |
| 2012 | 47 | 1.301,17 | 27,68 | 2 |
| 2013 | 41 | 905,43 | 22,08 | 2 |
| 2014 | 27 | 701,16 | 25,97 | 2 |
| 2015 | 26 | 683,25 | 26,28 | 2 |
| 2016 | 31 | 754,11 | 24,33 | 2 |
| 2017 | 25 | 409,97 | 16,40 | 2 |
| 2018 | 23 | 662,50 | 28,80 | 2 |
| 2019 | 29 | 1.013,72 | 34,96 | 2 |
| 2020 | 35 | 859,45 | 24,56 | 2 |
| 2021 | 28 | 662,18 | 23,65 | 2 |
| 2022 | 29 | 755,11 | 26,04 | 2 |
| 2023 | 31 | 729,44 | 23,53 | 2 |
| 2024 | 23 | 484,44 | 21,06 | 2 |
| totale | 832 | 18.411,62 | 22,13 | 34 |