Caterpillar Inc. is the world's leading manufacturer of construction and mining equipment. In addition, Birinyi Associates identified Caterpillar as one of the top five companies to repurchase their own shares in a recent year.12 Three recent years of earnings and average common shares outstanding data for Caterpillar are as follows (in millions): Year 3 $3,695 617.2 Year 2 $3,789 645.2 Year 1 $5,681 652.6 Net income Average number of common shares outstanding a. Determine the earnings per share for Years 1-3. Caterpillar had no preferred stock outstanding. Round your answers to two decimal places Year 3 Year 2 Year 1 Earnings per share b. Interpret the trend in earnings per share using horizontal analysis for the three years in terms of the change in earnings and average shares outstanding