The line graph represents the amount of water for single use (with a significant decreasing trend) and water efficiency (with a significant increasing trend) from 1991 to 2016 on a scale indexed to 100 for 1991. The additionally depicted time series for electricity generation of thermal power plants, which extends to 2017, shows a quadratically decreasing trend.
EW-R-4: Water efficiency of thermal power plants

The line graph represents the amount of water for single use (with a significant decreasing trend) and water efficiency (with a significant increasing trend) from 1991 to 2016 on a scale indexed to 100 for 1991. The additionally depicted time series for electricity generation of thermal power plants, which extends to 2017, shows a quadratically decreasing trend.

Source: StBA (environment statistics; monthly report on electricity supply)image download