| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 122 | 3.363,69 | 27,57 | 3 |
| 2007 | 112 | 4.104,72 | 36,65 | 3 |
| 2008 | 114 | 4.474,12 | 39,25 | 2 |
| 2009 | 115 | 4.301,96 | 37,41 | 3 |
| 2010 | 146 | 3.812,63 | 26,11 | 4 |
| 2011 | 136 | 4.072,60 | 29,95 | 3 |
| 2012 | 128 | 3.193,33 | 24,95 | 4 |
| 2013 | 170 | 3.829,92 | 22,53 | 4 |
| 2014 | 125 | 4.235,35 | 33,88 | 4 |
| 2015 | 129 | 4.323,16 | 33,51 | 4 |
| 2016 | 127 | 3.782,08 | 29,78 | 4 |
| 2017 | 117 | 2.646,24 | 22,62 | 4 |
| 2018 | 98 | 2.302,98 | 23,50 | 4 |
| 2019 | 106 | 2.646,42 | 24,97 | 4 |
| 2020 | 112 | 2.683,09 | 23,96 | 4 |
| 2021 | 101 | 2.636,89 | 26,11 | 4 |
| 2022 | 102 | 2.550,63 | 25,01 | 4 |
| 2023 | 101 | 2.463,73 | 24,39 | 4 |
| 2024 | 102 | 2.510,26 | 24,61 | 4 |
| totale | 2.263 | 63.933,80 | 28,25 | 70 |