Employer costs per hour worked for health insurance, private industry workers, by occupation and union status, March 2009 Occupation or union status Nonunion $1.75 Union 4.15 Production, transportation, and material moving 2.25 Natural resources, construction, and maintenance 2.44 Service 0.91 Sales and office 1.77 Management, professional, and related 2.91 All workers 2.00