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

The two graphs illustrate the proportion of electrical machines in houses,

as well as

the

number

of housework per week spent in a certain country during the

last

100 years.

Overall

, it can be seen that the proportion of

the

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refrigerator ownership skyrocketed

while

the

number

of washing machines rose moderately between 1920 and 2019. At the same

time

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time,

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the

number

of hours of housework plummeted several times. The

number

of refrigerators

raised up

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increased

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tremendously from

the

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zero

percentage

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per cent

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at the very beginning to 100% in 1980. The rate of vacuum cleaners soared almost with the same estimation from 30% in 1920 to 100% in 2000.

However

, the proportion of washing machines increased less than two times during the all period with the figures of 40% to roughly 70%.

Due to

these innovations, the amount of housework decreased crucially from

the

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50 hours per week to 10 hours weekly in 1920 and 2019 respectively.