The line graphs compare the proportions of families purchasing electrical appliances and the average
time
spent on housework per household in the period from 1920 to 2019.
Use synonyms
It is clear that
electrical appliances were more and more popular,and every family spent less Linking Words
time
every year doing housework over the whole period.
In 1920,almost no family had a refrigerator,and the percentage of vacuum cleaners was low,at 30%.Use synonyms
However
,in 1980,the usage of refrigerators rose to 100%, and the ownership of vacuum cleaners peaked at 100% as well in 2000.Linking Words
Moreover
, both the figures stayed at the highest level from Linking Words
then
.Linking Words
On the other hand
,The number of families with washing machines kept relatively stable.In 1920,the proportion was 40%,and it was around 75% in 2019.
In terms of the Linking Words
time
spent on housework,in 1920,it cost every family 50 hours each week to take care of their houses;in 2019,only one-fifth of the Use synonyms
time
was needed for doing it .Use synonyms
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