Explanation:

- The sentence is about a report with figures updated to a certain date. The correct word should imply the date is the latest point considered.

- Option 1: "unless" is incorrect. It introduces a condition, not a point in time.

- Option 2: "uptill" is incorrect. It's a misspelling; the correct form is "up till" or "until."

- Option 3: "until" is correct. It indicates the figures are updated up to a specific point in time, making it appropriate here.

- Option 4: "onto" is incorrect. It implies movement to a position, not a time limit.