HOW INDEXES HAVE RISEN

Continuing a trend starting in 1983, the Nelson-Farrar refinery construction index rose slowly, from 1106.2 in January 1987, to 1184.1 in December 1988. Labor component rose at about the same rate as did the material component. The labor index rose from 1352.8 to 1427.5 over the 2-year period, while the material index rose from 736.3 to 819.0 over the same period.

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