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12a. Average age of workers, construction and all industries , 1985-2005 (All types of employment). 12b. Average age of employees, by industry, 2005 (Wage-and-salary workers). 12c. Age distribution in construction, selected years, 1985-2005 (All types of employment).
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12a. Average age of workers, construction and all industries, 1985-2005 (All types of employment)
12b. Average age of employees, by industry, 2005 (Wage-and-salary workers)
12c. Age distribution in construction, selected years, 1985-2005 (All types of employment)
12d. Age distribution in all industries, selected years, 2005-2050 (All types of employment)