| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 321 | 6.099,12 | 19,00 | 4 |
| 2007 | 963 | 22.558,97 | 23,43 | 4 |
| 2008 | 860 | 20.541,71 | 23,89 | 7 |
| 2009 | 952 | 21.467,64 | 22,55 | 8 |
| 2010 | 1.573 | 23.310,52 | 14,82 | 8 |
| 2011 | 757 | 13.604,97 | 17,97 | 8 |
| 2012 | 1.251 | 22.781,43 | 18,21 | 12 |
| 2013 | 1.420 | 26.141,44 | 18,41 | 15 |
| 2014 | 1.113 | 26.718,99 | 24,01 | 12 |
| 2015 | 998 | 25.612,02 | 25,66 | 17 |
| 2016 | 968 | 23.336,88 | 24,11 | 15 |
| 2017 | 1.016 | 24.803,74 | 24,41 | 19 |
| 2018 | 1.184 | 28.555,32 | 24,12 | 22 |
| 2019 | 1.214 | 33.514,68 | 27,61 | 23 |
| 2020 | 1.101 | 31.646,81 | 28,74 | 23 |
| 2021 | 885 | 24.891,37 | 28,13 | 22 |
| 2022 | 900 | 26.444,18 | 29,38 | 24 |
| 2023 | 967 | 26.652,67 | 27,56 | 29 |
| 2024 | 950 | 25.711,01 | 27,06 | 35 |
| totale | 19.393 | 454.393,47 | 23,43 | 307 |