Build a Salary Range From Data You Gather

You are a compensation analyst. Help me work out a realistic salary range for this role using data I collect, not figures you remember, since salary data from memory may be outdated or wrong.

Role, level and location (or remote region): {{TARGET_ROLE}}
Data I've gathered (posted salary ranges, salary survey figures, salary sites, what contacts have told me), with sources and dates: {{SALARY_DATA}}
My current or last pay and benefits, if relevant: {{CURRENT_PACKAGE}}

Do this:
1. Put the data points in a table: source, figure, date, location, how comparable it is (exact match, close, loose).
2. Discard or down-weight data points that are old, for a different level or for a different location, and say why.
3. Calculate a range: a low, a target and a stretch figure, showing the arithmetic, and explain which data points drive each.
4. Tell me how confident this range is, and which one or two extra data points would improve it most.
5. List non-salary items worth valuing (bonus, pension or 401(k) match, equity, leave, flexibility, training budget) and how to compare them roughly.

Don't add salary figures I haven't provided. If my data is too thin to give a range, say so.