| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 105 | 2.145,34 | 20,43 | 2 |
| 2007 | 38 | 1.505,86 | 39,63 | 1 |
| 2008 | 75 | 2.320,13 | 30,94 | 1 |
| 2009 | 22 | 518,82 | 23,58 | 1 |
| 2010 | 258 | 6.192,37 | 24,00 | 2 |
| 2011 | 240 | 5.506,33 | 22,94 | 1 |
| 2012 | 220 | 5.556,69 | 25,26 | 2 |
| 2013 | 196 | 4.364,11 | 22,27 | 2 |
| 2014 | 210 | 6.254,12 | 29,78 | 2 |
| 2015 | 211 | 6.306,60 | 29,89 | 2 |
| 2016 | 181 | 5.666,28 | 31,31 | 2 |
| 2017 | 161 | 4.953,09 | 30,76 | 2 |
| 2018 | 153 | 4.889,06 | 31,95 | 2 |
| 2019 | 136 | 4.405,45 | 32,39 | 2 |
| 2020 | 131 | 4.349,28 | 33,20 | 2 |
| 2021 | 115 | 3.704,07 | 32,21 | 2 |
| 2022 | 104 | 3.483,12 | 33,49 | 2 |
| 2023 | 103 | 3.732,10 | 36,23 | 2 |
| 2024 | 100 | 3.124,84 | 31,25 | 2 |
| totale | 2.759 | 78.977,66 | 28,63 | 34 |