| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 210 | 5.903,33 | 28,11 | 6 |
| 2007 | 166 | 5.032,01 | 30,31 | 6 |
| 2008 | 121 | 3.633,17 | 30,03 | 7 |
| 2009 | 107 | 3.523,76 | 32,93 | 6 |
| 2010 | 134 | 3.780,37 | 28,21 | 7 |
| 2011 | 134 | 3.698,18 | 27,60 | 5 |
| 2012 | 94 | 2.890,29 | 30,75 | 6 |
| 2013 | 98 | 3.580,68 | 36,54 | 6 |
| 2014 | 94 | 3.884,89 | 41,33 | 5 |
| 2015 | 87 | 4.953,31 | 56,93 | 5 |
| 2016 | 92 | 3.991,06 | 43,38 | 5 |
| 2017 | 60 | 2.155,93 | 35,93 | 4 |
| 2018 | 46 | 1.631,65 | 35,47 | 3 |
| 2019 | 53 | 2.259,04 | 42,62 | 3 |
| 2020 | 56 | 2.381,90 | 42,53 | 3 |
| 2021 | 64 | 2.534,45 | 39,60 | 3 |
| 2022 | 71 | 2.828,58 | 39,84 | 3 |
| 2023 | 64 | 2.187,23 | 34,18 | 4 |
| 2024 | 73 | 2.263,20 | 31,00 | 4 |
| totale | 1.824 | 63.113,03 | 34,60 | 91 |