_id	numberOfComprehensiveContracts	numberOfWasteWaterContracts	numberOfWaterContracts	wasteWaterSale	waterPurchase	waterSale	year
1	18	2907	971	298509.0	783765	507121.31	2018
2	16	2933	1025	307703.5	757638	481786.6	2019
3	17	3077	1030	309787.0	688842	469835.0	2020
4	17	3108	1047	306827.0	661945	457559.0	2021
5	18	3168	1059	309584.0	661475	500580.0	2022
6	19	3214	1081	319408.5	723677	536528.82	2023
7	19	3268	1093	343284.77	668881	516116.52	2024