Revenues from water abstraction charges have remained stable in real terms at a level of around MXN 8 billion per year. Agricultural users are exempted from water abstraction rights for water quantities within their licensed quotas and the charge rate for quantities above their licensed quota is only between 0.7% and 8% of the general charge rate (depending on the availability zone), in 2011, revenues from agricultural users represented MXN 8 million or 0.1% of all water abstraction revenues. Water utilities pay preferential rates, at 2% to 10% of the general rate, and most of the proceeds are returned to them through the PRODDER programme.16 As a result, industrial users represent close to 70% of water abstraction revenues, which increases to 90% if the PRODDER reimbursements are considered. For example, water users can deduct the cost of buying and installing metering equipment from their water abstraction payments.