The provided graph illustrates how much (money) a typical Japanese worker earned per month, and how much (money) a black and white TV and a color TV cost between 1953 and 1983.
Overall, it was clear that the prices of both B&W TV and Color TV witnessed opposite trends with the Japanese average monthly salary (yen). For the former experienced consecutive decreases while the latter increased steeply over the period.
In 1953, a black-and-white TV cost as much as 100 yen, which was considered expensive at that time. With that price, the average earnings of workers in Japan per month was unable to afford a black-and- white television with just 20 yen they earned in one month. In 1963, with the emergence of color television, the charge of it stood at 100 yen while the expense of black-and-white TV experienced a significant decline to 40 yen. However, the salary of a typical Japanese worker increased slightly, averaging around 20.
In 1973, both B&W and color TVs showed parallel downward movements approximately 28 yen and 60 yen in that order. But the income of a typical Japanese worker continued to rise yet more dramatically with above 30 yen, which was able to buy a black-and-white television with the salary they received in one month. In the final examined year, the earnings of typical Japanese workers surged at around 68 yen but either a color or a black-and-white TV, whose prices at around 48 and 20 yen, respectively.