Sydney urban water supply in megalitre's 2010-11 to 2013-14, BoM Data
See: http://www.bom.gov.au/water/nwa/2015/
Data used by the Department of Environment and Energy to produce graph at Figure WAT6 in the Inland Waters theme of the 2016 State of the Environment Report, available at
https://soe.environment.gov.au/theme/inland-water/topic/2016/water-resource-development#inland-water-figure-WAT6