The graph illustrates global water consumption in three sectors (agriculture, industrial, and domestic) between 1900 and 2000.
Overall, the water usage in all three sectors increased significantly over the century. However, agriculture remained the dominant user of water throughout the period, while domestic use accounted for the smallest proportion.
In 1900, agriculture consumed approximately 500 cubic kilometers of water, whereas the industrial and domestic sectors used minimal amounts. Over time, water consumption in agriculture experienced a steady rise, reaching nearly 3000 cubic kilometers by 2000. This was the most noticeable trend among the three sectors.
Industrial water use, on the other hand, grew more slowly until 1950, after which it surged, reaching about 1000 cubic kilometers by the end of the century. Domestic usage remained relatively low in comparison, starting from almost zero and gradually increasing to around 300 cubic kilometers in 2000.
In conclusion, agricultural water consumption far exceeded the other sectors, although all sectors saw a significant increase in usage over the century.