the public sector grew by 108 workers. By that time there were 114 union members in the public sector. A. Fill in the corresponding table: B. The union density in 2003 was direction of change). C. In this example, the counterfactual union density is if not zero to indicate the direction of change). \%. From 2003 to 2013 the change in union density was \%. From 2003 to 2013 the change in the propensity to unionize was percentage points (Include the sign if not zero to indicate the percentage points (Include the sign