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

The first figure represents the proportion of available household electrical devices from 1920 to 2019.

While

the second graph illustrates the number of electrical devices consumed in the same given period. The units are measured by hours per week.

Overall

, both refrigerators and Vacuum cleaners were the most popular during the given years.

Furthermore

, they both recorded a rapid increase from 1920 to 2019.

Likewise

, washing machines decreased slightly from 1960 to 1980 and

then

experienced a slight risen.

Moreover

, there was a considerable decline in the number of hours used for house duties over the period.

This

indicates how much electrical devices reduced the number of hours needed for housework. With regard to refrigerators, the figure started at zero value in 1920 and

then

reported a significant climb until reaching a peak of 100 in 1980. After that, there was a steady state during the next three years. Similar to Vacuum cleaners which began at 30 in 1920 and

then

rose until reach a peak of 100 in 2000, and

then

there was no change in the next years.

In contrast

, washing machines started at 40 in 1920 and

then

rose to a peak of 70 before declining to the level of 65 in 1980.