What is the average percent pay raise increase most employers are
giving there employees in the state of New Jersey?

This will be only partially helpful to you, I'm afraid...

The Federal Reserve Board publishes a report known as The Beige Book
eight times a year.  It is a compilation of information gathered from
"key business contacts, economists, market experts, and other
sources."  This information is summarized into a full report, then
broken down by district.  The most recent can be found at
http://www.federalreserve.gov/FOMC/BeigeBook/2002/20020731/default.htm

They don't spend a lot of time actually talking about raise rates. 
But maybe it's a start.

G'luck.