Manufactured products reached a peak just under 45 mln, whilst others deteriorated dramatically

The charts illustrate the information about three exports from South Asia and the four sources of annual profit from 1970 till 1995.
It can be seen from the line graph, manufactured products showed the highest amount in comparison with other two exports, such as Timber and The other law materials. The quantity of all three exports increased abruptly, Manufactured products 23-34 mln, Timber 14-25 mln and Other raw materials 30-37 mln respectively. Manufactured products reached a peak just under 45 mln, whilst others deteriorated dramatically even more less than the beginning. The figure of Manufactured products hit a trough in1990. However, this trend remained as th most exportable product.

From the pie charts, it is clear the percentages of all sources changed considerably between 1970 and 1995. Two sources went up considerably, Tourism from 27% to 54%, Other from 11% to 13% respectively. Whereas, proportion of rest trends levelled off significantly , domestic 33%-21%, exports 29%-12%. In contrast with others, Tourism hit the highest rank during 25 years.

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Your essay needs some works.
1. Your introduction should not contain any specific information such as Manufactured products 23-34 mln, Timber 14-25 mln
2.ourism from 27% to 54%, Other this sounds quaint, there are many words that you can apply in this situation. For example, whilst, in the meantime, while, at the same time, simultaneously e.t.c from 11% to 13%.

And another thing, you should have written the overall trend in your introduction.
Keep up the good work!
Hopefully, it will benefit your next essay!