The charts show how many households had electrical appliances and how much time people spent on housework in one country from 1920 to 2019.
Overall, the ownership of all three appliances increased during the period, while the number of hours spent on housework went down. The refrigerator and vacuum cleaner became almost common in every home by the end of the period.
In 1920, only a small percentage of people had a washing machine, a refrigerator, or a vacuum cleaner. The refrigerator started at around 0% but rose very quickly, reaching almost 100% by 1980 and staying close to that level afterwards. The vacuum cleaner also increased steadily and reached about 90% in 2019. The washing machine grew more slowly. It rose from just over 30% in 1920 to around 70% in 1960, then increased slightly to about 75% by 2019.
The second chart shows a clear fall in the number of hours spent on housework. In 1920, households spent about 50 hours per week. This number dropped to around 30 hours in 1960. After that, the hours continued to decrease and reached about 10 hours per week in 2019.