(IELTS Task 1) The graph below shows the proportion of four different materials that were recycled..

The graph below shows the proportion of four different materials that were recycled from 1982 to 2010 in a particular country.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

recycling materials proportion

The chart shows the percentage of paper and cardboard, glass containers, aluminum cans and plastics that were recycled in one country between 1982 and 2010.

In 1982, about 65% of paper and cardboard was recycled. This figure fluctuated before rising steeply to reach a peak 80% in 1994. From then on, however, it decreased steadily to a level of 70% in 2010. In 1982, half of all glass containers were recycled; after dipping to a low of 40% in 1990, the glass recycling rate gradually increased to 60% by 2010.

Aluminum cans were first recycled in 1986, starting at about 5%, but this figure climbed rapidly over 25 years and by 2010 it had reached 45%. Recycling of plastics, on the other hand, was not introduced until 1990 and, although the growth in this category was also constant, it was very slow, rising from about 2% to around 8% over the period.

Overall, the proportion of paper and cardboard that was recycled was the highest of the four class of material, but this category experienced a decline after 1994, whereas there was a continuing upward trend in the recycling of the other materials.

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Vanson, the summary overview needs to indicate a complete representation of the provided instruction points in the original post. That is because the overview serves as the outline that the reader can refer to in order to keep track of the discussion should he lose his place while reading. It is meant as a reference for the reader and therefore, should be in complete representation of the prompt elements at all times.

Your opening statement and your concluding statement do not qualify as complete paragraphs for the purposes of GRA and C&C scoring considerations. You need to present at least 3 sentences in order to qualify the lines as a complete and developed paragraph for the C&C section. While the extended sentences help you to showcase your GRA skills by creating more sentences that prove your understanding and usage skills when it comes to the English language. The longer and more properly developed your sentences are, the better scoring considerations you will get overall.

Try to avoid run on sentences as you have in the concluding statement. Always use opt to use full stops (periods) instead so that you create more appropriate simple or complex sentences in the process. Your presentation is acceptable to a certain degree and should not get a shabby final score in the overall consideration. I might pass, but not at the high level one would expect.

@Holt
Thank you for your helpful advice. I will try to avoid these mistakes.