Band 5+: The charts below show the changes in ownership of electrical appliances and amount of time spent doing housework in households in one country between 1920 and 2019. Summarise the information by selecting and reporting the main features, and make comparison where relevant.

The line graph compares the total utilization ratio between three electrical devices (washing machines, refrigerators, and vacuum cleaners) and also the average hours of housework that were spent during 99 years.

Overall, we can see noticeable changes over the period. All devices saw an upward trajectory, while washing machines showed little deepening. Beside, numbers of hours spent in housework experienced a downward trend.

It is clear that trads of refrigerator and vacuum cleaner increased dramatically to 90 percent in 1980,and then it continued their upward trend in the next twenty years to reach a peak at 100 percent in 2000.

Washing machines gradually grew between 1920 and 1960 to 70 percent ; however, it began to decrease during a period from 1960 to 1980 ,but after it still grows until reach the highest level in 2019.

As we can see, the ratio of numbers of hours of housework per week per household saw downward trend only over 99 years .It was picked to 50 percent in 1920 ,but from 1960 to 2019, it slightly decreased.