The given pie charts compare the percentage of waste disposal from nine different sources in one country between 1960 and 2011. Overall, there was a significant shift in waste dumping over the period, with almost all types of waste products experiencing an upward trend, with the exception of textiles, other, and paper wastes, which saw a staggering drop. Additionally, it was food disposal that produced the highest proportion in the final year, while both glass and green waste consistently accounted for the same figure.
Starting with the most exponential growth in waste disposal, the figure for food, which stood at 12% in 1960, soared to reach its highest point of 21% in 2011. Meanwhile, in 1960, 4% of wastes were produced by wood, considerably lower than the figures for disposal in plastic and metal, at 4% and 8%, respectively. However, after 51 years, the percentage of waste produced from plastic and metal wastes saw a pronounced rise, growing to 18% and 9%, respectively, making them more widely used among others. In contrast, both green waste and glass remained at their previous figures over the period, indicating 5% and 9%, respectively.
As for the declining patterns of change in disposal, the other forms of waste witnessed noticeable drops. In 1960, textiles and other wastes made up similar percentages of disposal, at 17% and 11%, respectively, after which the rate for the former nearly fell to its lowest level of 4% in the final year. Meanwhile, 15% of litter was produced by paper in 1960, and despite the dominance of the year, the figure then decreased to 15% throughout the period.