The line graph titled “Recycling Rate for Selected Materials: 1982-2010”, showing the percentage of paper & cardboard, Glass containers, Aluminum cans and Plastics recycled in an unnamed country over 28years. In 1982, about 65% of paper & cardboard was recycled. This figure fluctuated before rising and reaching the peak of 80%, in 1994. From then on, However, it steadily decreased to 70% in 2010. In 1982, around 50% of Glass containers was recycled, the rate dropped to 40% in 1990 and gradually increased to 60% in 2010.
Aluminum cans were first recycled in 1986, starting at 5%, but the figure climbed rapidly to 45% over 24years approximately in 2010.
Recycling of plastics, on the other hand, was not introduced until 1990. The growth level was constant and very slow, rising from 2% t 8% over the period.
Overall, the proportion of the paper and cardboard that was recycled was the highest of the four classes of material, but experienced a decrease, whereas for the other materials had a continuous upward trend in the recycling growth rate.
