Boston is nation’s top tech-talent exporter

The San Francisco Bay Area added 120,500 tech jobs in the last five years, for a growth rate of 61.5% percent. Major U.S. cities, generally, all saw double-digit growth in tech employment, according to a new report.
There is a fair chance that good number of San Francisco's tech workers came from the Boston area, according this study, 2016 Scoring Tech Talent by CBRE, a real estate services firm.
This report puts the nation's tech population at 4.8 million, and says tech employment has grown by