1. From the mass consumption, calc the volumetric consumption by fuel by country
2. Calculate the weighted average price for all countries:
Multiply the price by the consumption
Summate for all countries
Divide total by the total consumption (where prices are non-zero)
3. For the real prices, divide each price by the appropriate HICP (2005 = 1) and repeat 2
4. 'Gasoline' equivalent price is obtained by:
Multiply the fuel price by the consumption and divde by its energy relative to unleaded petrol
Summate for the three fuels and divide by the total consumption
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By having aerators and water flow restrictors fitted on your taps, the flow of water will feel stronger, but will consist of less water and more air. Aerated taps can reduce the water flow by 30-40 %.
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