| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 206 | 4.409,28 | 21,40 | 2 |
| 2007 | 84 | 2.809,64 | 33,45 | 1 |
| 2008 | 93 | 2.495,94 | 26,84 | 1 |
| 2009 | 115 | 2.667,13 | 23,19 | 2 |
| 2010 | 114 | 2.353,14 | 20,64 | 2 |
| 2011 | 111 | 2.256,84 | 20,33 | 1 |
| 2012 | 128 | 2.758,57 | 21,55 | 2 |
| 2013 | 134 | 3.102,39 | 23,15 | 2 |
| 2014 | 112 | 2.553,73 | 22,80 | 2 |
| 2015 | 115 | 2.819,86 | 24,52 | 2 |
| 2016 | 117 | 2.814,58 | 24,06 | 2 |
| 2017 | 116 | 3.117,64 | 26,88 | 2 |
| 2018 | 136 | 3.361,56 | 24,72 | 2 |
| 2019 | 126 | 3.205,99 | 25,44 | 2 |
| 2020 | 134 | 3.632,78 | 27,11 | 2 |
| 2021 | 143 | 4.029,17 | 28,18 | 2 |
| 2022 | 148 | 4.226,69 | 28,56 | 2 |
| 2023 | 12 | 481,88 | 40,16 | 1 |
| 2024 | 15 | 310,05 | 20,67 | 1 |
| totale | 2.159 | 53.406,86 | 24,74 | 33 |