The first graph displays the percentages of households that owned electrical appliances in one country between 1920 and 2019, while the second graph illustrates how much time households in that country spent doing housework during the same period.
Overall, ownership of all three appliances increased during this period, with that of refrigerators the greatest growth. At the same time, the amount of time spent on housework decreased.
Washing machines were the most common of the three electrical appliances in 1920, with ownership reaching 40% . then rose to about 75% in 2019, with a small dip in 1980. Nearly a third of households owned vacuum cleaners in 1920. Although ownership climbed steadily, it did not reach 100% until 2000.
In comparison, almost no households had a refrigerator in 1920. However, ownership increased rapidly and by 1980 .
first fell significantly from 50 to 15 hours per week between 1920 and 1980. After that, it to just over 10 hours a week in 2019.
