Here are some main points that most people noticed about the graph in last week's lesson:
- There were significant changes in the amounts of waste produced by all three companies.
- Waste produced by companies A and B decreased, but waste produced by company C increased.
- Company A was the biggest waste producer at the beginning of the period, but C was the biggest producer by the end of the period.
- Company A produced the largest amount of waste in total.
I recommend choosing just two of these main points for a two-sentence overview paragraph. For example:
It is clear that there were significant changes in the amounts of waste produced by all three companies shown on the graph. While companies A and B saw waste output fall over the 15-year period, the amount of waste produced by company C increased considerably.