The provided graph illustrates the percentage of four item that were recycled over a 28-year period. By 2010, paper and cardboard were the highest rate at 70 per cent, followed by glass containers at 60 per cent, aluminium cans at about 45 per cent, and plastics at almost 10 per cent.
The plastic, the lowest percentage among the four materials, experienced a slight growth from 1990 to 2010, and reached a peak of about 9 per cent. However, the rate of the aluminium can impressively increased from approximately 5 per cent in 1986 to about 45 per cent by 2010; as a result, it accumulated its position as the number three, in that order.
Even though, paper and clipboard fell a slightly decrease from 80 per cent to 70 per cent by 2010 after an significant growth in 1990, they were still at the top position among the four items.
