<p>Since no one is helping and I dont know i thought I would point you to the BLS as they now have a scpecific category for it:</p>
<p>[Nurse</a> Practitioners](<a href=“http://www.bls.gov/soc/2010/soc291171.htm]Nurse”>http://www.bls.gov/soc/2010/soc291171.htm)</p>