Please check my introduction to explain the table.
The table compares the number of overseas visiter to the United Kingdom from four different countries between 1997 and 2005, and gives projection in 2020. According to the chart, visiters fom most countries had increased during this period, especially India, which was also forecasted to rise dramatically for 2020.

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first, you should've posted a notebook entry where people can correct for you. anyway, your introduction is good. However, here are few mistakes I would like to point out:
1- it's spelled as 'visitors' not 'visiters'.
2- compares the number of (foreign) visitors.
3- .. to rise dramatically (until/by) 2020.