Accuracy of 1988-2000 occupational employment growth descriptor projections, by number of categories Number of Accuracy of growth desciptor projections 87 descriptor projected correctly 100 projected descriptor one category away from actual descriptor 74 projected descriptor two categories away from actual descriptor 49 projected descriptor three categories away from actual descriptor 16 projected descriptor four categories away from actual descriptor 12 projected descriptor five categories away from actual descriptor Growth descriptors based on projected employment change, which appeared in the 1990-91 "Occupational Outlook Handbook," were compared with descriptors corresponding to actual growth.