The response covers all key features of both charts with a clear overview, accurate data (40% washing machines in 1920, refrigerators reaching 100% by 1980, housework falling from 50 to just over 10 hours), and relevant comparisons, with only a minor imprecision in describing ownership as a percentage of the population.
8.0Information is organised logically with a clear introduction, overview, and separate body paragraphs for appliances and housework, supported by cohesive devices such as 'In comparison' and 'by contrast' that guide the reader smoothly.
7.5Vocabulary is generally flexible and appropriate for describing trends and proportions, with good use of items like 'climbed steadily' and 'a small dip', though the range of trend verbs and modifiers remains somewhat limited and occasionally repetitive.
7.5A variety of complex structures, including relative clauses and contrastive constructions, is used with good control, and errors are rare and non-impeding, such as the slightly awkward 'with that of refrigerators having the greatest growth'.
7.5