The given line graph illustrates the demand for different types of textiles—namely polyester, cotton, cellulosic, and wool—between 1980 and 2015. Overall, the demand for most textiles increased over the period, with polyester showing the most significant growth. While cotton was the most used material at the beginning, polyester overtook it by the end. In contrast, the demand for wool remained relatively stable throughout the period.
In 1980, the amount of demand for Cotton, which stood at around 15 million tonnes in 1980, grew by only 10 million tonnes in 2000, but had soared to just under 33% by 2015. Similarly, Polyester witnessed a dramatic surge in demand, eventually becoming the most sought-after textile by 2015, starting at approximately 5 million tonnes in 1980, increased to at peak 70 million tonnes by 2015.
In contrast, there was a insignificant change in the figure for Cellulosic, which stood at well under 5 million tonnes initially, but had remained stable until 2000. Despite the no change, the figure experienced a marked increase from around 5 to 10 million tonnes by the end of the given period. Likewise, the figure for wool recorded the lowest level of demand throughout the period. It rose from around 3 to 5 million tonnes in the middle years, before declining back to 3 million tonnes by 2015.