The two line graphs compare the percentage of houses which owned electrical appliances and how much time of housework which was costed in households in a specific country from 1920 to 2019.

The line graph illustrates the proportion of families in a country that owned electrical

appliances

between 1920 to 2019,

while

the second line graph displays how long the average

household

in that country spend on

household

chores every week during the same period.

Overall

, the ownership of three

appliances

increased throughout the years, with the greatest growth in the possession of refrigerators. During the same time interval, people spent less time on their housework. The washing machine was the most popular among all electrical

appliances

, being owned by four out of ten families in 1920.

This

proportion rose moderately to 75% in 2019. Almost no family owned a refrigerator in 1920,

however

, its ownership experienced a tremendous escalation to reach 90% in 1960, overtaking washing machines to become the most commonly owned

among

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three

appliances

. Every

household

had a refrigerator by 1980. One-third of the families possessed vacuum cleaners at the beginning of the period, the figure

then

increased steadily before reaching 100% in the year 2000. The amount of time spent on housework,

however

, showed a disparate pattern. The average family spent 50 hours every week doing

household

duties in 1920.

This

number dropped significantly to 15 hours in 1980. It

then

experienced a slight decrease to just above 10%

at the end

of the period.