Tabulate the following information which appeared as part of a newspaper article on dishwashing machinesAn idea of the slow growth of the industry during a period of soaring sale in other appliances in competitive price ranges is given in a recent study by the trade journal Electrical Merchandising: In 1947, the survey showed, 120,000 motor-driven dishwashers were sold at an average price of $ 250. In 1948, sales rose to 225,000 at an average price of $ 275. In 1949, with the average price the same as the year before, the sales dropped to 160,000. In 1950, they jumped to 230,000 at an average price of $ 290 and in 1951 they continued to climb to 260,000 units even though the average price went up to $ 300. In 1952, sales dropped to 175,000 units and in 1953 they rose to only 180,000 despite the fact that average price remained at $ 300.