I can't find good data on the topic but I'm sure it exists somewhere and would be confident that the the overall trend is a large reduction. Have a look at the

I can't find good data on the topic but I'm sure it exists somewhere and would be confident that the the overall trend is a large reduction. Have a look at the female labour force participation rates in America and USA between 1900 and 2000. How are they compatible with households spending more time cleaning and cooking now than in 1900? As an alternative, ask old family members about the amount of time their mothers spent cooking, shopping and cleaning when they were growing up. Finally, look at time spent on Household chores in Mexico/Kenya vs USA.