The chart below illustrates the percentage change in water rates by unit of consumption in five world cities in 2000 and 2010, compared to the prices in 1990.

The table represents the proportion change in water rates by unit of consumption in five world cities over a 10-year period from 2000 to 2010 in comparison to the prices in 1990. Overall, the water rates of most cities saw significant increase. Generally, some surpassed the 1990 prices while only one stayed below it. In […]