If the Martians can reach Venus, there is no reason to suppose that the thing is impossible for men, and when the slow cooling of the sun makes this earth uninhabitable, as at last it must do, it may be that the thread of life that has begun here will have streamed out and caught our sister planet within its toils
Based on the key given on the bottom of the chart that shows the color/job associated with the percents in the pie chart, Retail trade is the dark yellow, which is showed in th 19% wedge.
