The graphs display the level of particular electrical appliances in households and how much time was spent doing housework from 1920 to 2019.
Overall, the number of families who owned refrigerators and vacuum cleaners surged throughout the period and leveled off while washing machines fluctuated. And fewer hours were spent on housework during the given period in question.
In 1920, refrigerators and vacuum cleaners started off lower than washing machines around 2% and 30% respectively. But all this changed dramatically as the trend for both of those skyrocketed to 100% and 90% each in 1980. From there, cleaners eventually reached 100% in 2000 and the two rates remained stable. On the other hand, washing machines remarkably increased to 70% in 1960, took a slight dip and considerably rose to just above 70%.
Surprisingly, people spent almost 50 hours weekly doing house chores in 1920 which was by far the most number of hours spent. Over six decades, less time was inserted into housework. And by the year 1980, it was around 10%, remained stable for twenty years, and receded negligibly to 10% in 2019.