The first line graph illustrates how the rate of electrical appliance ownership changed from 1920 to 2019 in a country, while the second graph displays the time spent on housework weekly during the same period. It can be seen that the percentage of families with washing machines, fridges and vacuum cleaners experienced an upward trend, whereas the amount of time doing housework underwent a decline.
In 1920, the rate of washing machine ownership was the highest, with 40%, followed by that of vacuum cleaners, with 30%, while barely any household owned refrigerators. Over the next years, the proportion of families with fridges surged, being the first to reach 100% in 1980. The share of households that possessed vacuums hit 100% in 2000 and remained at this level afterward, whereas the data for washing machines fluctuated during the 100-year period and finished at about 75% by 2019. This made the rate of washing machine ownership the lowest in the final year.
With regard to time spent doing housework, it started at the highest point of 50 hours per week in 1920. This figure fell in the following years, with the most noticeable decline happening between 1920 and 1960, as it dropped to 20. This trend much more mildly over the final 60 years, as after a period of relative stability from 1980 to 2000, the amount of time for housework finished at over 10 hours a week per household.