I would put the prices use a 20 or 10 unit measure for y-axis and do 1 unit on the x-axis. The graph would look skinnier at this rate and even in the information the price is on the y-axis side...
From 0 to 100 at intervals of 25 would be the most convenient way since we have y-values of 24.97, 49.94, 74.91, and 99.88 which all round up to 25, 50, 75, and 100, respectively.
