[2023.5.20] The chart below shows the percentage of different types of household waste that were recycled in one city between 1992 and 2002.
The bar chart illustrates changes in the figures for four categories of domestic waste recycled in a city from 1992 to 2002.
Overall, there were improvements in the recycling of all the four types of waste. Most noticeably, the greatest change could be found in the proportion of recycled glass.
Looking at the information in more detail, we can see that in the initial year, only about 15% of glass was recycled. After 5 years, this figure more than doubled, followed by a remarkable growth to 48% in 2002. During the same period, the percentage of recycled paper also witnessed a constant climb, rising significantly from about 14% in 1992 to 38% in 2002.
It is clear that the figures for the other two kinds of waste were relatively lower in the 10-year period. Although the percentage of recycled cans ranked the top(18%) in the beginning, there was a slight fall in it by 3% in the subsequent 5 years, before rising markedly to 28% by the end of the period. By contrast, the figure for recycled plastic rose marginally to approximately 12% in 1997, after which the last 5 years saw a period of steadiness.