The graph shows how the amount of water used worldwide changed between 1900 and 2000.
Throughout the century, the largest quantity of water was used for agricultural Purposes, and this increased dramatically from about 500 km³ to around 3, 000 km³ in the year 2000. Water used in the industrial and domestic sectors also increased, but consumption was minimal until mid-century. From 1950 onwards, industrial use grew steadily to just over 1, 000 km³, while domestic use rose more slowly to only 300 km³, both far below the levels of consumption by agriculture.
The table illustrates the differences in agriculture consumption in some areas of the world by contrasting the amount of irrigated land in Brazil (26, 500 km³) with that in the D. R. C. (100 km²). This means that a huge amount of water is used in agriculture in Brazil, and this is reflected in the figures for water consumption per person: 359 m³ compared with only 8 m³ in the Congo. With a population of 176 million, the figures for Brazil indicate how high agriculture water consumption can be in some countries. 
The graph  
shows
 how the amount of  
water
  used
 worldwide  
changed
 between 1900 and 2000.
Throughout the century, the largest quantity of  
water
 was  
used
 for agricultural Purposes, and this increased  
dramatically
 from about 500 km³ to around 3, 000 km³ in the year 2000.  
Water
  used
 in the industrial and domestic sectors  
also
 increased,  
but
  consumption
 was minimal until mid-century. From 1950 onwards, industrial  
use
 grew  
steadily
 to  
just
 over 1, 000 km³, while domestic  
use
 rose more  
slowly
 to  
only
 300 km³, both far below the levels of  
consumption
 by agriculture.
The table illustrates the differences in agriculture  
consumption
 in  
some
 areas of the world by contrasting the amount of irrigated land in Brazil (26, 500 km³) with that in the D. R. C. (100 km²). This means that a huge amount of  
water
 is  
used
 in agriculture in Brazil, and this  
is reflected
 in the figures for  
water
  consumption
 per person: 359 m³ compared with  
only
 8 m³ in the Congo. With a population of 176 million, the figures for Brazil indicate how high agriculture  
water
  consumption
 can be in  
some
 countries.