"c VAR 0017 06137 VAN PAL 3R 946-962 MD= 1E-37 " "c REF 0017 LOC 114 WIDTH 9 DK 2 COL 53-61 " "c " "c " "c ADVANCE BUYING ON PRINCIPAL MATERIALS, PER CENT BUYING 60 " "c DAYS OR LONGER " "c --------------------------------------------------------- " "c " "c NBER SERIES: 06137 " "c AREA COVERED: U.S. " "c UNITS: PERCENTAGE " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 01/1946-09/1962 " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: PURCHASING AGENTS ASSOCIATION OF CHICAGO, COMBINED " "c STATISTICAL AND ANALYTICAL REPORT OF THE BUSINESS SURVEY " "c COMMITTEE, MONTHLY " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c ............................................................... "