The two line graphs illustrate the proportion of electrical appliances ownership for families and total of time doing chores for each family per week in one country during 1920 to 2019.
Concentrate on the first graph firstly. It is obvious that all kind of electrical appliances ownership grew in that period time. Refrigerator shows the most rapid rising speed, which accelerated from 1920 in 0% to 1980 100%. The ownership of vacuum cleaner elevated in a slower way compare to refrigerator. It started in 30% in 1920 and reached to 100% in 2000. Washing machine demonstrated the most slight acceleration relatively, which climbed by 20% during 1920 to 1940, fluctuating in 60% to 70% for 60 years, expanding slightly in the last 20 years and eventually stood on approximately 73%.
The other graph reveals that the number of hours of housework per week per household consistent fell from 50 hours to a low of 10 hours during this period. By comparison to these two graphs, it is clear that the figures for housework time decrease while appliances use increase.