The line graphs illustrate percentage of washing machine, refrigerator and vacuum cleaner, as well as number of hours spent on house chores weekly in a single country between 1920 and 2019.
Overall, the percentage of electrical appliances had significant increasing figures through 99 year’s period and the percentage of a refrigerator and a vacuum cleaner had soared up from low amount, and people gradually began to spend less time on house works per week.
In 1920, there were no refrigerator, people using, however after its appearance the percentage of its usage had breakthrough and reached 90% in 1960. The percent of a vacuum cleaner and a washing machine stood at 30 and 40, respectively in the first given year. While a vacuum cleaner saw the same rising amount of 20 % each 2 decades, a washing machine had a slight decline of about 5% in 1980 had slow rises, calculated by approximately 32 % in the whole period of time. If a refrigerator ranked top with 100% of utilisation in 1980, a vacuum cleaner reached to maximal percent 20 years later, and both of them remained in there top level till the end of the period.
The amount of time spent doing housework in households accounted for 50 hours in a week in 1920, fortunately it had remarkably decline by 25% percents in each 20 years, reaching 20 hours of cleaning time in 1960. Eventually, between 1960 and 2019 this amount of hours had slightly diminished by only 10%.