internal insights inc., a developer of radiology equipment, has stock outstanding as follows: 18,000 shares of cumulative preferred 4% stock, $120 par, and 60,000 shares of $10 par common. during its first four years of operations, the following amounts were distributed as dividends: first year, $57,960; second year, $124,840; third year, $160,560; fourth year, $196,200. compute the dividend per share on each class of stock for each of the four years. round all answers to two decimal places. if no dividends are paid in a given year, leave it blank.