The recurring guidance, subject by subject: which counsel the Rebbe gave, how often within each theme, and how it shifted across the decades. Each formula is a countable, citable claim — and the low-rate rows are where the exceptions live.
Each formula is a curated set of Hebrew phrasings, counted only within letters already tagged to that topic. Boilerplate words (שלום, בשמחה, לטובה) were deliberately excluded so a match means real counsel, not a greeting. Because the phrase lists are hand-built, every rate is a lower bound — the true figure rises as we add phrasings.
The low-percentage rows are the point, not a flaw: a 3% formula names the small set of letters where the Rebbe gave that specific counsel — a readable, finite exception set. Reusable data: igros_advice.jsonl (per-letter) · igros_advice_stats.json.