Topic from The charts below show the changes in ownership of electrical appliances and amount of time spent doing housework in households

The first line graph plots the percentage of homes which had a

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electrical appliance between 1920 and 2019. Three appliances are shown: refrigerator, vacuum cleaner and washing machine. The second line graph plots the average amount of time each family spent weekly on common household chores during the same period.

Overall

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, a steadily increasing proportion of families owned these appliances, especially vacuum cleaners and refrigerators. There is a very strong negative correlation between the percentage of homes with a refrigerator and the number of hours devoted to household chores. In detail, almost no one had a refrigerator in 1920, but one was present in every home by 1980. About three in ten had a vacuum cleaner in 1920, and

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also

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increased to every home by 2000. Washing machines started out with the highest value, 40%, in 1920.

However

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, it did not reach 100%, but only three-quarters of the homes in 2019. As more households acquired these appliances, less and less time was spent on chores. The number of hours per week dropped by 80%, from 50 to 10 hours per week.