Infinity.com, a software development firm, has stock outstanding as follows: 100,000 shares of 2% cumulative preferred stock of $20 par, and 50,000 shares of $100 par common. During its first five years of operations, the following amounts were distributed as dividends; first year, none; second year, $45,000; third year, $110,000; fourth year, $130,000; fifth year, $180,000. Calculate the dividends per share on each class of stock for each of the five years.