Most of the new jobs are part time. It wasn't until 2000 that the BLS started counting part time employment (under 35 hours a week) in the jobs number. Reagan's jobs numbers were based only on people working full time (40 hours a week).
“What we’re seeing is a growing trend of low-quality part-time jobs,” said Carrie Gleason, director of the Fair Work Week Initiative, which is pushing for labor reforms. “It’s creating this massive unproductive workforce that is unable to productively engage in their lives or in the economy.”
http://humanevents.com/2014/07/03/june-jobs-report-is-great-for-part-time-workers-not-so-much-for-full-time/
http://www.washingtonpost.com/business/economy/more-americans-are-stuck-in-part-time-work/2014/07/02/2eefaa72-f7e7-11e3-a3a5-42be35962a52_story.html