Internal Insight Inc., a developer of radiology equipment, has stock outstanding as follows: 70,000 shares of cumulative preferred 2% stock, $60 par, and 100,000 shares of $10 par common. During its first four years of operations, the following amounts were distributed as dividends: first year, $49,000; second year, $132,000; third year, $146,000; fourth year, $160,000. Compute the dividends per share on each class of stock for each of the four years.