Wallace Inc., a developer of radiology equipment, has stock outstanding as follows: 30,000 shares of cumulative preferred 2% stock, $90 par and 125,000 shares of $10 par common. During its first four years of operations, the following amounts were distributed as dividends: First year, $24,000; second year, $81,000; third year, $92,000; fourth year, $139,000. Calculate the dividends per share on each class of stock for each of the four years.