1 points The market for Good X is depicted below. Market for Good X P PBO PBJ P. Ps.1 Po Q1 Where Po = $5, PS,0 = $8, PS, 1 = $11, P* = $14, PB, 1 = $16, PB,0 = $18 P1 = $20, Qo = 40, Q1 = 80, and Q* = 120. Suppose there is a $10 per unit transaction cost. An intermediary enters the market and reduces the transaction cost to $5 per unit. How much did this intermediary add to producer surplus? (Do not include the dollar sign $ in your answer)