Employer cost for compensation per hour worked, 1968 (private industry) and 2000 (private industry and State and local government) Dollars Straight-time wages, 1968 3.13 Benefits, 1968 0.76 Insurance, 1968 0.09 Employer retirement plan, 1968 0.11 Social security, 1968 0.13 Straight-time wages, 2000 15.36 Benefits, 2000 5.8 Insurance, 2000 1.36 Employer retirement plan, 2000 0.77 Social security, 2000 0.98