The graph display the percentage of households in a certain country that owned various common household appliances between 1920 to 2019.
Overall, the washing machines started at 10 pecentage in 1920, whereas refrigerator and vacuum cleaners were half of it. Until 2019 every appliances reached the maximum gradually.
Between 1920-1940, vacuum cleaners increased rapidly, while washing machines and refrigerators displayed compariable outcomes. Similarly, in 20-year period, between 1940-1960, approximately every appliances increased more than double.
In 1980, refrigerators overtooked the place of washinng machines, whereas in 2000 again washing machines tooked place. In 20-year period the level of washing machines jumped 75% percent to 95% percent, subsequently other appliances displayed similar results. In 2000, the highest proportion is owned by washing machines with 95% percentage. Between 1920 and 2019, every appeliances ever decreased once, and increased rapidly. In 2000, washing machines regained their previous position as the most widely owned appliance.
