The response covers all four categories, their main trends and useful starting and ending comparisons. The overview nevertheless calls the largest category a majority and asserts unsupported causation. Changes between shares need percentage-point units; the unlabelled plotted values permit reasonable estimates.
8.0Ideas progress logically from overview to detail with effective use of referencing and linking devices such as 'whilst' and 'from this point', though some phrasing, like listing two declines 'in turn', is slightly unclear.
7.0The response uses a varied range of trend vocabulary, but some choices need greater precision. “Precipitous” gives the smaller decline disproportionate emphasis, “recover back” is redundant, and “steady growth” could distinguish continued increases from a constant rate more clearly. “Possessed” is acceptable formal vocabulary.
7.0GRAGrammatical Range and Accuracy
The response uses complex sentences, comparisons and consistent past-tense narration. Local weaknesses include the singular “one-car owner” when referring to a category and the awkward comparison around “that of”. Hyphenating “three-car owners” clarifies the compound modifier; “recover back” is a lexical redundancy rather than a tense error.
7.0