Please check my Ielts task 1

The bar chart plots the receipts of three types of tech products of A & V Tech Company: laptops, smartphones, and cameras between 2000 and 2004.

Overall, only the revenue of laptops is represented on the chart in 2000. From 2001 onwards, that of smartphones and cameras is added, and it is below the baseline. Also, the receipts of three types of tech products showed progressive patterns, with the 2004's numbers being much higher than the initial ones. And laptops consistently yielded the most profit throughout, whereas the inverse was true for smartphones except in 2003.

As the most profitable product, laptops started at just above four million dollars. It dipped slightly to well above three million dollars the next year and rose precipitously by a factor of nearly three to reach approximately nine million dollars in 2004.

Regarding smartphones and cameras, they began below the baseline (nearly -2 million for the former and about -1 million for the latter). The numbers then increased substantially to be nearly identical in 2003, at about 3.5 million dollars. At the end of the period in question, there was an imperceptible rise in the earnings from cameras but a marked decline by about 0.2 million dollars in those of smartphones.