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

The charts illustrate how the ownership of three household appliances changed from 1920 to 2019, and how the amount of time spent on housework per week developed over the same period.

Overall

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, the use of electrical appliances grew dramatically, especially

refrigerators

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and

vacuum

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cleaners

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,

while

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weekly housework

hours

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fell sharply. In 1920, washing machines were the most common device at about 40%,

whereas

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hardly any homes had

refrigerators

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and

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, and

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vacuum

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cleaners

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stood at around 30%. By 1960, all three appliances experienced a significant rise, with

refrigerators

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emerging as the leading item, reaching nearly 90%. Washing machines and

vacuum

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cleaners

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also

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rose to about 70%. From 1960 onward,

refrigerators

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and

vacuum

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cleaners

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approached full saturation, hitting 100% and roughly 95% respectively by 2000. Meanwhile, washing-machine ownership grew more slowly, reaching around 75% by the end of the period.

In contrast

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, the

hours

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of housework fell consistently. In 1920, households spent over 50

hours

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per week on domestic tasks.

This

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number dropped steadily to 20

hours

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in 1960 and

then

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declined

further

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to about 10

hours

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in 2019. The downward trend highlights how technological development significantly eased household workloads.