As a result, in the decade 1997-2007 the use of freshwater in agriculture dropped by 37%, and the use of marginal water grew by 50%. Total water consumption was reduced by 10%, whereas the general efficiency of the agricultural sector with regard to water use increased by 62% (Knesset Research and Information Center, 2008). The administrative structure of the water sector has changed, with powers concentrated in the hands of the Water Authority, led by the Water Authority Council. The tariff system for all consumer types has improved, since the economic considerations (such as covering the cost for providers) have been given greater importance and the tariff system is simpler and more equal and transparent than it used to be.