There are two-line chart diagrams depict changes that the percent of electrical appliance in households in 1920-2019 and the total time of doing housework every weeks in same time.

There are two-line chart diagrams depicting changes that the

percentage

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of electrical appliances in households in 1920-2019 and the total

time

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of doing

housework

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every week at the same

time

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. For the first line chart diagram,

it is clear that

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the figures are about three kinds of electrical equipment. For the

percentage

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of washing machines, it could be noticed that there existed a slightly increased from 1920 to 1960.

Furthermore

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, it increased by 30%. From 1960 to the next 50 years, it kept steady. The

percentage

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of households with refrigerators and vacuum cleaners, as an

overall

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trend

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, climbed from 1920 to 2019. It should be noticed that the

percentage

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of refrigerators had a more dramatic change than the vacuum cleaners. It clearly shows that the rate of using refrigerators had rapidly increased, and nearly 100 per cent went up. The second line chart diagram represents the

time

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people

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do

housework

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every week. It shows a quickly decreased

trend

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. In 1950,

people

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did

housework

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at least to spend 50 hours, and yet

people

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only spent ten hours on

housework

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in 2019. It was a dramatic change. In conclusion, it is obvious that the

percentage

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of households with electrical equipment is increasing

trend

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.

In addition

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,

people

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spending

time

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on homework had a going up

trend

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.