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 line graphs illustrate the possession and usage

hours

of three different types of electrical appliances in one country from 1920 to 2019. 

Overall

, it can be seen that despite the clear upward trend in the

percentage

of households with appliances, the time of usage of housework per

week

decreased over time. 

According to

the first chart, in 1920,

the

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washing machines showed a higher

percentage

at the beginning of the period (40%), compared to the ownership of refrigerators which was almost zero. In the same year, the usage of vacuum cleaners was around 30% of households. After 40 years the

percentage

of people using washing machines and vacuum cleaners had reached the same value(70%),

while

the ownership of refrigerators soared noticeably at 90% of households. It is evident that

at the end

of the period, the most bought electrical appliances were washing machines and vacuum cleaners. In terms of the

percentage

of time doing housework per

week

, in 1920 it was 50

hours

per

week

. After 4 decades, the number of

hours

per

week

spent working plummeted to 20

hours

.

Then

it began to fall slightly till 2019

,

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when it was approximately 10

hours

of working per

week

.