78.The charts below shows the changes in ownership of electrical appliances and amount of time spent doing housework in households in one ocuntry between 1920 and 2019. Summarize the information by selecting and reporting the main features, and make comparisons where relevant

The line graphs below illustrate the percentage of

households

with electrical appliances and the

hours

people spent doing housework between 1920 and 2019.

Overall

, over the

years

, an increasing number of

households

had electrical appliances,

while

the time spent doing housework dropped. Refrigerators experienced a steady rise, with around 1% of

households

having one in 1920, about 55% in 1940, 90% in 1960 and

finally

from 1980 until 2019 all

households

had a refrigerator. The percentage of

households

with vacuum cleaners experienced a sharp increase from 1920 to 1980, each 20

years

there was an increase of 20% of

households

with a vacuum cleaner, and from 2000, all families had one. The number of

households

with washing machines rose significantly in the first 40

years

, from 40% to 70%,

then

experienced a small decline before it continued growing to 75% in 2019. The time that people spent doing housework dropped dramatically between 1920 and 1980, from 50

hours

a week to around 15

hours

, which remained stable in the next 20

years

, but

then

it started to fall modestly to just over 10

hours

in 2019.