The line graph illustrates how the cost of color and black & white TVs as well as average monthly salary changed in Japan at 10-year intervals, from 1970 to 2000, measured in thousands yens.
Overall, the figure for the cost of both types of TVs witnessed a downward trend, with colorful TV being not emerged in initial years, whereas the reverse was true for monthly salary of the Japanese.
Looking at the price of colorful TVs in more detail, starting at 110,000 yens initially, a figure experienced a dramatic decrease to 40,000 yens in 1980. This then declined slowly but constantly towards the end, hitting the lowest point at 20,000 yens.
Regarding black & white TV costs, it was not available when the period began, and started with exactly 100,000 yens in the late 1970s. There was a rapid decline in the price to well under 70,000 yens in the middle of the timeframe examined, before a further drop to around 50,000 yens in the final year.
Moving on to the average wage of Japanese population, it stood at just under 20,000 yens in 1970, followed by a gradual growth of about 12,000 yens in around 1995. Another sharp rise was seen in the figure for monthly salary to nearly 68,000 yens in 2000, reaching its peak at the end.
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