important key accounting aggregates / energy extraction / main accounting aggregates / electricity / energy consumption / net energy consumption / net energy use originating / gross energy supply / final energy use / crude oil / wide material flow accounting / net domestic energy extraction / main accounting identity underlying / above accounting items / energy requirement / gross energy use / car fuel / energy flow accounts / policy applications / energy use / energy products / net energy accounts / main accounting identity / gross energy accounts / water en energy / energy content / media kg / heavy metal equivalents / energy / /