The two line graphs compare the percentage of houses which owned electrical appliances and how much time of housework which was costed in households in a specific country from 1920 to 2019.

The line graph illustrates the proportion of families in a country that owned electrical

appliances

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between 1920 to 2019,

while

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the second line graph displays how long the average

household

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in that country spend on

household

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chores every week during the same period.

Overall

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, the ownership of three

appliances

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increased throughout the years, with the greatest growth in the possession of refrigerators. During the same time interval, people spent less time on their housework. The washing machine was the most popular among all electrical

appliances

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, being owned by four out of ten families in 1920.

This

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proportion rose moderately to 75% in 2019. Almost no family owned a refrigerator in 1920,

however

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, its ownership experienced a tremendous escalation to reach 90% in 1960, overtaking washing machines to become the most commonly owned

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three

appliances

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. Every

household

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had a refrigerator by 1980. One-third of the families possessed vacuum cleaners at the beginning of the period, the figure

then

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increased steadily before reaching 100% in the year 2000. The amount of time spent on housework,

however

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, showed a disparate pattern. The average family spent 50 hours every week doing

household

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duties in 1920.

This

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number dropped significantly to 15 hours in 1980. It

then

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experienced a slight decrease to just above 10%

at the end

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of the period.