Appendix D: Conformity and Timing Scores for 1948–65

Geoffrey H. Moore and Julius Shiskin, Indicators of Business Expansions and Contractions (NBER, 1967), chap. 9, https://www.nber.org/books-and-chapters/indicators-business-expansions-and-contractions/appendix-d-conformity-and-timing-scores-1948-65.