Answer
China had the most Internet users in 2010.
Work Step by Step
Normally, in a bar chart, to find the greatest value, we would look for the tallest bar.
However, since this is a Pareto chart, in which the bars are already drawn in decreasing order of frequency/relative frequency, the greatest value (frequency) is the first bar drawn.
China is the first country having the bar drawn. So China had the most Internet users in 2010.
