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

The line graphs provide information on the percentage of households with electrical supplies and the weekly

number

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of

hours

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spent by each household doing housework in a certain nation from 1920 to 2019.

Overall

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, the ownership of electrical appliances consisting of fridges, washing machines, and vacuum cleaners had upward trends,

while

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the amount of time invested in doing housework had a declining trend among households. The ratio of households who owned refrigerators dramatically jumped in the first four decades from barely zero in 1920, to 55% in 1940 and 90% in 1960.

However

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, after a 10% leverage in the next 20 years, the percentage stayed unchanged at 100% until 2019.

In contrast

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, washing machines which had the highest initial point at 40% grew moderately throughout the time, with a slight drop from 70% in 1960 to 65% in 1980.

Additionally

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, vacuums consistently rose by 20% every 20 years starting from 30% by the beginning of the period until reaching 90% in 1980, yet the increase in 2000 was only half of that

number

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and remained stagnant until 2019.

On the contrary

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, the

number

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of

hours

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spent on washing clothes, preparing meals, and cleaning for each household had a declining trend from 50

hours

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to 15

hours

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per week between 1920 to 1980. After that, it gradually decreased until the

number

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reached 10

hours

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weekly per family in 2019.