The aggregate is the average.

Mixed provenance
The 18 Pandemic & Reshoring cells are computed from primary ISM monthly Services Reports on Business (ROB) archived on the Wayback Machine — score is each industry's growth-month percentage, mapped to the −100…+100 scale. The other 72 cells across four pre-Pandemic regimes are scaffold placeholders pending editorial research; three of those four regimes (Bretton Woods, Stagflation, most of the Great Moderation) predate Services PMI's 1997 launch entirely and will permanently remain "n/a". Hover or click a cell for its citation chain; the data ledger tracks every cell's provenance.

Industry	Martin Bretton Woods 1948–71	Burns Stagflation 1971–82	Greenspan Great Moderation 1982–2007	Bernanke Crisis & Recovery 2007–19	Powell Pandemic & Reshoring 2019→
Accommodation & Food Services	+0	+0	+0	+0	+77
Agriculture, Forestry, Fishing & Hunting	+0	+0	+0	+0	+7
Arts, Entertainment & Recreation	+0	+0	+0	+0	+32
Construction	+0	+0	+0	+0	+62
Educational Services	+0	+0	+0	+0	+65
Finance & Insurance	+0	+0	+0	+0	+69
Health Care & Social Assistance	+0	+0	+0	+0	+84
Information	+0	+0	+0	+0	+51
Management of Companies & Support Services	+0	+0	+0	+0	+41
Mining	+0	+0	+0	+0	+33
Other Services	+0	+0	+0	+0	+49
Professional, Scientific & Technical Services	+0	+0	+0	+0	+57
Public Administration	+0	+0	+0	+0	+84
Real Estate, Rental & Leasing	+0	+0	+0	+0	+32
Retail Trade	+0	+0	+0	+0	+56
Transportation & Warehousing	+0	+0	+0	+0	+70
Utilities	+0	+0	+0	+0	+97
Wholesale Trade	+0	+0	+0	+0	+52