Johnson Electronics sells electronic components through catalogs. Catalogs are updated and printed every three months. Each printing run incurs a fixed cost of $$2,500,$ which involves catalog design cost and printing setup cost. The variable production cost is $$3$ per catalog. Annual demand for catalogs is estimated to be normally distributed with a mean of $10,000$ and a standard deviation of $2,000.$ Data indicate that, on average, each customer ordering a catalog generates a revenue of $$15$ from sales. How many catalogs should be printed in each run?