Fortune's Anne Fisher reports on the unexpected nine cents per hour uptick in wages that economists noticed in the latest monthly jobs report. One key finding: the biggest pay gains this year are going to people who have changed jobs--no more so than those going into construction jobs.

The average pay for job switchers has risen 6.5%; however the increase for those who toil in the same jobs they held last year was only 3.5%, according to the ADP Research Institute's new Workforce Vitality Report. And some industries are seeing larger against than others:

Moving on to a new employer in education or health care paid only 0.4% more than staying in the same place. By contrast, in construction, job switchers’ wages shot up 19.6% in the first three quarters of 2015, versus a relatively modest 4.3% boost for construction workers who stayed put.

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