There are currently over 900,000 of these & the avg. American uses under 14,000; Shakespeare used 24,000
These and other results from the American Time Use Survey (ATUS) ... --On the 
days they worked, 82 percent of employed persons did some or all of their work 
at their ... --On an average day, adults age 75 and over spent 7.8 hours ... day, 1.1 
hours more than employed adults living with a child under age 6.