The given first graph illustrates the percentage of households, which used various domestic appliances as washing machine, refrigerator and vacuum cleaner from 1920 to 2019. The second graph presents how many hours of domestic chores as washing clothes, preparing clothes and meals was done by each household during the years shown.
Overall, it can be observed, that the percentage of households with refrigerators and vacuum cleaners increased dramatically while households with washing machines went up gradually during the century. The quantity of hours doing housework in each household decreased significantly between 1920 and 2019.
According to the given data, the percentage of household ownership of washing machine and vacuum cleaner rose noticeably to 70%, while the percentage of refrigerator owners surged to 90% during the first 40 years. The number refrigerator owners continued to grew and reached the peak in 1960, which was steady until 2019. The percentage of vacuum cleaner ownership went up slowly after the 1960 year and culminated at 100% of households in 2000, while washing machine ownership fluctuated after the respectively period and experienced small growth at more 70% in 2019.