The charts below show the changes in ownership of electrical appliances and amount of time spent doing housework in households in one country between 1920 and 2019.

The second

chart

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depicts the number of

hours

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of housework in each family on a weekly basis from 1920 to 2019, and the first

chart

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compares the figures for the percentages of

electrics

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electricity

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used by three electrical appliances in the same period of time.

Overall

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, the number of

hours

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of family doing housework experienced a significant decline over the whole period,

while

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the percentage of

electric

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electricity

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used by

refrigerator

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refrigerators

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had the greatest growth of all.

According to

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the second

chart

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, the number of

hours

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of housework decreased significantly from its peak of 50

hours

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in 1920 to 20

hours

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in 1960, followed by a slight decline until 2019.

According to

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the first

chart

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, in 1920,

washing

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the washing

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machine

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machines

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had the largest units of electric consumption of all electrical appliances. It increased gradually from 40 in 1920 to 70 in 1960, fluctuating around 70 over the following years.

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,

refrigerator

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refrigerators

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rocketed dramatically from merely 1 in 1920 to 100 in 1980, followed by a levelling off. Regarding vacuum

cleaner

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cleaners

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, it

also

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rose rapidly from 30 in 1920 to 100 in 2000, which reached a joint point with

refrigerator

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refrigerators

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.

Then

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it remained unchanged until 2019.