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The image contains two line graphs, the first titled "Percentage of households with electrical appliances (1920-2019)" and the second titled "Number of hours of housework per week, per household (1920-2019)"; both x-axes range from 1920 to 2019 in increments of 20 years, and y-axes vary in scale and units. The first graph depicts 4 lines representing washing machines, refrigerators, vacuum cleaners and electric irons, with data points at 1920:0%, 1940:washing machines 20%, refrigerators 10%, 1960:washing machines 40%, refrigerators 50%, vacuum cleaners and electric irons 10%, 1980:washing machines 60%, refrigerators 90%, vacuum cleaners 20%, electric irons 30%, 2000:washing machines 80%, refrigerators 100%, vacuum cleaners 60%, electric irons 40%, 2019:washing machines 100%, refrigerators 100%, vacuum cleaners 80%, electric irons 70%. The second graph shows a single line for "Hours per week" declining from 1920:50, 1940:40, 1960:30, 1980:20, 2000:10, 2019:<5.
Given the complexity of the image, the above description may not be entirely accurate.
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The two given graphs illustrate the percentage of households using three electrical appliances—washing machines, refrigerators, and vacuum cleaners—in a specific country between 1920 and 2019. Additionally, they show the number of hours each household spent on housework per week.
Overall, the graphs indicate that the usage of all three electrical appliances increased significantly over the period. Meanwhile, as households adopted these appliances, the time spent on housework declined substantially.
It is evident from the graphs that all appliances experienced a notable rise in usage by 1940. The refrigerator saw a continuous increase, reaching 100% penetration by 1980. Similarly, vacuum cleaner usage rose significantly from around 50% in 1940 to its peak in 2000.
On the other hand, the washing machine exhibited a more moderate increase compared to the other two appliances. Its usage steadily rose until 1960, peaking at 70%, before experiencing a slight decline around 1980. However, it resumed its upward trend and exceeded 70% by 2019.
In contrast, the number of hours spent on housework dropped dramatically from 50 hours per week in 1920 to about 20 hours by 1960. After that, it continued to decline consistently, reaching its lowest point in 2019.
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