SAMPLE: Cite FRED and Census; do not commit private macro packs

This is placeholder editorial for the /data page.

Public sources this desk may name:

• FRED / BLS Producer Price Index for dental services and dental equipment
• U.S. Census Bureau CBP and ZBP establishment counts for NAICS 621210

Private artifacts this repo will not commit:

• data/private/macro/ FRED observation CSVs from dental-live-trader
• DFW density extracts
• NPPES net-adds stubs
• ZIP centroid files

If a later data bot wants a public chart, it should fetch or cite the public series — not copy the trader’s private pack into this git tree.