1. 2a. Number and percentage of construction establishments and employees, by establishment size, 2007 (With payroll: private industry) Establishment size Number of % of all Number % of all (number of employees) establishments establishments of employees employees 1 to 9 581,781 79.8% 1,684,383 23.0% 10 to 19 75,126 10.3% 1,009,251 13.8% 20 to 99 63,298 8.7% 2,474,123 33.8% 100 to 499 8,542 1.2% 1,548,497 21.2% 500 or more 598 0.1% 599,987 8.2% Total 729,345 100.0% 7,316,240 100.0%

2. 2b. Number of construction establishments, 1977-2007 (With payroll: private industry)

3. 2c. Number of construction employees, 1977-2007 (With payroll: private industry)