These line charts illustrate the proportion of having electrical appliances and the number of time spent on housework in a country 
from
 1920 and 2019. 
The Change preposition
between
percentage
 of families that have three different electrical appliances rise in Use synonyms
this
 century.  The figure for a washing Linking Words
machine
 fluctuated between 40% to 75%. There was a progressive upturn in the proportion of that from 40% to 70% over a span of 40 years between 1920 to 1960 followed by a drop to 64% in 1980. Use synonyms
Subsequently
, the data grew stably to 75% Linking Words
at the end
 of the given period. Moving on to the Linking Words
percentage
 of a Use synonyms
refrigerator
 and a Use synonyms
vacuum
 Use synonyms
cleaner
, they showed an upward trend in Fix the agreement mistake
cleaners
this
 period. The Linking Words
percentage
 of families having a Use synonyms
refrigerator
 rise significantly from 0% in 1920 to 100% in 1980 overtaking that of a washing Use synonyms
machine
 in 1945. And there was Use synonyms
also
 an increase for that with a Linking Words
vacuum
 cleaner from 30% to 100% exceeding that of a washing Use synonyms
machine
 in 1960. 
The number of hours people spent on housework decreased in Use synonyms
this
 period. The amount of time dropped significantly from 50 hours to 15% from 1920 to 1980 followed by a significant drop in the Linking Words
next
 40 years. 
Linking Words
Overall
, it is clear from the data that the Linking Words
percentage
 of having a washing Use synonyms
machine
, Use synonyms
refrigerator
 or Use synonyms
vacuum
 cleaner all saw a rise and that hours spent on housework saw a drop. It is Use synonyms
also
 striking that every home had a Linking Words
refrigerator
 and Use synonyms
vacuum
 cleaner after 2000.Use synonyms