1. 28a. Participation level in employment-based pension plans, by industry, 2010 (Wage-and-salary workers) 82% 63% 61% 52% 48% 38% 24% 54%

2. 28b. Participation level in employment-based pension plans in construction, by union status, 2010 (Production workers) 78% 28% 34%

3. 28c. Participation level in employment-based pension plans, selected construction occupations, 2010 (Wage-and-salary workers)

4. 28d. Distribution of participants in single employer and multiemployer retirement savings plans in construction, 2009 2,667 4,424