- Band 4 or lower: No clear overview or incorrect attempt at summarizing the data.
- Band 5: The overview is attempted, but either contains errors (e.g., incorrect trends) or includes specific data that should be in the body paragraphs.
- Band 6: Overview is generally accurate but lacks depth, and the body paragraphs may include irrelevant details or inaccuracies.
- Band 7 or higher: The overview and details are accurate, relevant, and increasingly more descriptive as the score improves.