The two line graphs give information on the proportion of families owning electrical appliances and the relative amount of time they spent doing housework in a 100-year time frame (1920-2019).
Overall, the ownership of three electrical appliances (washing machine, refrigerator and vacuum cleaner) increased in that period, which led to the reduction in the time each household did housework.
According to the first line graph, 40% of households had the washing machine in 1920, which generally grew to around 75% in 2019, despite a slight drop between 1960 and 1980. The ownership percentage of refrigerator started at 30% while almost no families owned the vacuum cleaner in that year. After that, both of the figures surged and the latter surpassed the former since 1940. During the last 20 years (2000 – 2019), all households in this country had the refrigerator and vacuum cleaner.
Regarding the second graph, in 1920, each family did housework for 50 hours per week, but this time went down gradually to merely more than 10 hours in 1980. From that time onwards, the time for housework doing stayed almost unchanged.