The line graphs illustrate the change in percentage of households with electrical appliances and number of hours of house work per week ,per household in a nation between 1920 and 2019.
Overall ,the percentage of households with electrical appliances had significantly increase figures throughout the 99 year’s period. Meanwhile,the number of hours per week decreased over the same period.
Firstly ,the percentage of households with a washing machine was 40% in 1920 ,then increased 30% in 1960 and drop approximately 8% in 1980 .the refrigerator percentage increased 100% dramatically from 1920 to 1980 and stable till last period .On the other hand ,vacuum cleaner were 10% less than washing machine in 1920 and it rose to 70% in 2000.
