_id	anno	eta media
1	2014	48.97
2	2015	49.44
3	2016	49.86
4	2017	50.17
5	2018	50.19
6	2019	50.29
7	2020	50.22
8	2021	50.24
9	2022	50.43
10	2023	50.33
11	2024	51.14