The line graph above displays how many people owned different types of households in each twenty years during the last century and another chart above illustrates the number of hours people have been doing housework per week in a country.
Overall, during the given period the ownership of each household rose significantly and the most significant ones were of vacuum cleaners and refrigerators. There was a dramatic decline in the amount of time men and women spent on housework.
Since 1920, there has been an increase in the percentages of owning washing machines, coolers and vacuum cleaners amongst the society. Laundry machine was the most common appliance in 1920 with nearly 40%, and experienced several sharp growths after which grew more steadily and reached the number of approximately 70% in 2019. Fridge started with a less result of 30% at the beginning, but quickly dashed to 100% and remained stable by 2019. Vacuum cleaner began as the least owned household with 0% and then for several decades this amount has been growing up and had reached 100% in 2000 staying in this state to 2019.
In 1920, in average 50 hours per week were spent by people cleaning their houses, washing clothes and preparing their meals in one country. Subsequently, the amount of hours has been plummeting continuously during 4 centuries to 20 hours per week. Then, the progress slowed down and became more calm but number still kept falling before it finally reached 10 hours per week in that country in 2019, hitting the lowest recorded level in the entire century.