The two charts provide data on the percentage of families in an unnamed country that possessed labour-saving devices
together with
the average time spent weekly on domestic chores over a one-hundred-year period. The data reveals a clear relationship between the growth in ownership of Linking Words
such
devices and the decreasing amount of time devoted to household tasks.
The percentage of homes possessing refrigerators grew dramatically after they were first introduced in 1920, climbing to 50% ownership in just twenty years and to 90% by 1960.By the year 1980, the peak of 100% was reached, a figure that has been maintained throughout the remainder of the period surveyed. Vacuum cleaners were Linking Words
also
found in every home but from the year 2000 onwards, after having risen steadily from 30% in 1920 to 90% in 1980. Linking Words
However
, by 2020 only Linking Words
three quarters
of all homes possessed a washing machine.Ownership of Add a hyphen
three-quarters
this
appliance rose gradually from 40% in 1920 to 70% in 1960 and, despite suffering a slight fall over the following twenty years, Linking Words
have
maintained a steady growth since.Correct subject-verb agreement
has
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