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The bar graph illustrates the average British household expenses on commodities and expenditure in a year. The overall expenses across various commodities and services appears to showed a downward trend with the highest expenses combined, transport and, recreation and culture, at above $50 and the lowest expenses combined, education and health at below $10 per week.

According to the chart, expenditure ranging from above $20 to below $50 per week, depitcs a soft decline, which include food and beverages, housing and power, restaurants and hotels, miscellaneous, and household goods, respectively. The aforementioned amass, showed a sharp drop with expenses with regards to communication and alcoholic drinks and tabacco combined, at below $20 per week.

Generally speaking, the average weekly expenditure in UK were fairly distributed.

I do not find big problems with your description. However, 'generally speaking' phrase is supposed to be used in introduction and use conclude or sum in the last paragraph. Moreover, your introduction is quite large comparing to conclusion.

Well this is what I think. If you have any comment/ feedback, give me.