| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 190 | 3.405,76 | 17,93 | 2 |
| 2007 | 160 | 3.259,14 | 20,37 | 1 |
| 2008 | 184 | 4.195,27 | 22,80 | 2 |
| 2009 | 536 | 10.535,12 | 19,66 | 3 |
| 2010 | 472 | 7.877,03 | 16,69 | 3 |
| 2011 | 98 | 2.010,39 | 20,51 | 1 |
| 2012 | 71 | 2.143,07 | 30,18 | 2 |
| 2013 | 208 | 3.977,15 | 19,12 | 3 |
| 2014 | 225 | 5.508,64 | 24,48 | 3 |
| 2015 | 220 | 5.094,92 | 23,16 | 3 |
| 2016 | 248 | 6.044,32 | 24,37 | 3 |
| 2017 | 215 | 4.705,16 | 21,88 | 3 |
| 2018 | 247 | 5.312,62 | 21,51 | 3 |
| 2019 | 230 | 4.880,66 | 21,22 | 3 |
| 2020 | 211 | 4.914,79 | 23,29 | 3 |
| 2021 | 171 | 4.175,68 | 24,42 | 3 |
| 2022 | 220 | 9.298,38 | 42,27 | 4 |
| 2023 | 190 | 5.173,80 | 27,23 | 4 |
| 2024 | 226 | 6.795,86 | 30,07 | 4 |
| totale | 4.322 | 99.307,76 | 22,98 | 53 |