The provided graphs display the changes in ownership of electrical appliances and the amount of time spent doing housework in households in a single country from 1920 to 2019.
Overall, the percentage of households owning refrigerators and vacuum cleaners showed significant increases over the given period, with refrigerators reaching 100% ownership by 1980 and vacuum cleaners reaching 85% ownership by 2000. In contrast, the ownership of washing machines displayed a moderate increase, reaching approximately 75% by 2019. Concurrently, the number of hours spent on housework per week per household decreased from 50 hours in 1920 to around 15 hours by 2019.
Initially in 1920, the ownership of refrigerators was minimal at about 5%, while washing machines were more popular at 40%. However, by 1980, the percentage of households owning refrigerators had dramatically risen to 100%, remaining constant thereafter. The ownership of vacuum cleaners also saw a substantial increase, reaching approximately 85% ownership by 2000. In contrast, the ownership of washing machines displayed a modest fluctuation, reaching nearly 75% by 2019.
Regarding the amount of time spent on housework, it began at 50 hours per week and gradually decreased to approximately 20 hours by 1960. Subsequently, there was a slight decline in the number of hours to around 15 hours per week by the end of the given period.