The first line graph illustrates the evolution of 
household
 electrical appliance ownership in a country from 1920 to 2019.
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Overall
, it is readily apparent that all electrical appliances became more popular, Linking Words
in particular
 refrigerators and vacuum cleaners.Leading to a significant reduction in the amount of time spent on Linking Words
household
 work.
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To begin
 with,in 1920 washing machines were the most common   electrical appliances.Ownership  reached 40% of households. Linking Words
However
, in 1980, the washing machine  jumped 100%.Almost a third of households owned vacuum cleaners in 1920. But in 2000, the vacuum cleaner  soared 100%.Linking Words
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Also
 refrigerators in 1920  decreased. Add a comma
Also,
nevertheless
, After a few years, its number tripled.Linking Words
However
, ownership increased rapidly and by 1980 there was one in every Linking Words
household
.
noticeable,as families acquired more electrical appliances, the amount of Use synonyms
household
 work, including cooking, cleaning, and laundry, decreased significantly. The number of Use synonyms
hours
 spent doing Use synonyms
such
 work decreased from 50 Linking Words
hours
 a week in 1920 to just 20 Use synonyms
hours
 in 1960 and 10 Use synonyms
hours
 in 2019.Use synonyms