The line graphs compare three distinct electrical appliances used in households and the number of hours spent doing housework in households in a country over a 99-year period.
Overall, the figures for the three appliances dramatically increased during the years. However, the number of hours spent doing housework gradually decreased. Although the figure for washing machines ranked first in 1920, it stood at the bottom of the figure.
In 1920, households with washing machines had the highest figure at 40, then households with vacuum cleaners stood at 3o, which both figures followed by an upward trend at 60 and 50 in 1940. And the figure for refrigerators was the lowest at 0, followed by a remarked increase and outstripped the second figure at 55 in 1940. In 1980, households with refrigerators reached a peak of 100, and the vacuum cleaner was at 90, then washing machines experienced a low of 64, which the former remained stable until 2000 when vacuum cleaner stood instead of that at the end of the period and washing machines slightly increase at 72 in 2019.
According to the second line graph, in 1920, the amount of time spent on housework was a lot at 50 hours per week, followed by an up-down trend at 15 in 1980, then remained unchanged in 2000 before experiencing a small decrease at 10 in 2019.