Outstanding stock of the Crevusse Corporation included 40,000 shares of $5 par common stock and 20,000 shares of 5%, $10 par noncumulative preferred stock. In 2013, Crevusse declared and paid dividends of $8,000. In 2014, Crevusse declared and paid dividends of $24,000. How much of the 2014 dividend was distributed to preferred shareholders?