the charts below show the changes in ownership of electrical appliance

The line charts present the changing

rate

of

ownership

of electrical appliances and quantities of time which were used in doing housework in every household in a state over a period of 99 years. From 1920 to 1980, the

rate

of

ownership

of refrigerators

had

Unnecessary verb

apply

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experienced a dramatical rising, from 0

percent

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per cent

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to 100

percent

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per cent

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, and

have

Correct subject-verb agreement

has

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not experienced any change since 1980.

Similarly

, a significant raising trend was

also

seen for the figures in the

rate

of

household

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households

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who possessed vacuum cleaners, from 1920 to 2000,

this

figures

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figure

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climbed to 100 %. The figures for the Washing machine have a different trend compared with

other

Correct article usage

the other

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two appliances, it has increased considerably to 70% in 1960,

after

Correct word choice

and after

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some fluctuations, the

ownership

rate

of washing

machine

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machines

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back to the 1960 figure by 2019. The number of hours of housework had experienced a

steadily

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steady

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drop from 50% to 10% over

past

Correct article usage

the past

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100 years.

Overall

, the

ownership

rate

of electrical appliances had risen significantly in the given period, and the housework hours dropped steadily since 1920.