The chart 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 given charts illustrate how many electrical devices were owned by people in one country and the time spent in the household on housework from 1920 to 2019. Units are measured in the percentage of households and the number of hours per week.

Overall

, it can clearly be seen that the holding of electrical appliances rose,

while

the number of hours of housework fell throughout the given period. In terms of the electrical tool with the highest level of

ownership

at the start, the

amount

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number

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of washing machines used stood at exactly 40 in 1920. The

ownership

then

increased gradually by 30 in the following 40 years before dropping slightly to about 65 in 1980. From

this

point onwards, it experienced a moderate climb to around 75 in the final year. Regarding the other two electrical tools with lower levels at the beginning, the

ownership

of vacuum cleaners and refrigerators started at 0 and 30 in 1920, respectively. The

ownership

of vacuum cleaners

then

increased significantly and peaked at exactly 100 in 2000.

Similarly

, the

ownership

of refrigerators witnessed

a

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dramatic growth and reached a peak at 100 in 1980.

Thereafter

, both remained steady until the final year. Meanwhile, the number of hours spent stood at 50

then

saw a gradual fall and hit a trough at just above 10 in the final year.