| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 212 | 4.708,63 | 22,21 | 3 |
| 2007 | 106 | 3.137,30 | 29,60 | 2 |
| 2008 | 124 | 4.152,52 | 33,49 | 3 |
| 2009 | 188 | 5.330,10 | 28,35 | 4 |
| 2010 | 209 | 5.106,83 | 24,43 | 4 |
| 2011 | 139 | 3.578,05 | 25,74 | 3 |
| 2012 | 113 | 2.733,76 | 24,19 | 3 |
| 2013 | 129 | 3.620,54 | 28,07 | 3 |
| 2014 | 140 | 4.889,44 | 34,92 | 5 |
| 2015 | 198 | 6.272,87 | 31,68 | 5 |
| 2016 | 193 | 5.931,79 | 30,73 | 5 |
| 2017 | 176 | 5.117,42 | 29,08 | 4 |
| 2018 | 149 | 4.758,82 | 31,94 | 4 |
| 2019 | 122 | 4.476,97 | 36,70 | 4 |
| 2020 | 120 | 4.893,75 | 40,78 | 5 |
| 2021 | 100 | 3.902,76 | 39,03 | 5 |
| 2022 | 61 | 2.824,68 | 46,31 | 5 |
| 2023 | 105 | 4.016,37 | 38,25 | 6 |
| 2024 | 144 | 5.250,42 | 36,46 | 7 |
| totale | 2.728 | 84.703,02 | 31,05 | 80 |