People employed at minimum wage decreasing:
https://research.stlouisfed.org/fred2/series/LEU0253127000A
Weekly earnings rising (a bit):
https://research.stlouisfed.org/fred2/series/LES1252881600Q
Where is your data?
[1] http://blog.indeed.com/the-role-of-part-time-jobs/
Number of people employed part-time, not by choice...falling:
https://research.stlouisfed.org/fred2/series/LNS12032196
U6 Unemployment rate...falling:
https://research.stlouisfed.org/fred2/series/U6RATE
We're down to June 2008 levels, but have a ways to go before we hit December 2007 levels.
350/40 hours = 8.75/hr
Edit: Turns out it's 1984 dollars.