A company (the investor) purchased 300 of the 1,000 outstanding shares of the investees common stock for $600,000 on January 2, 2021. During 2021, the investee declared dividends of $60,000 and reported earnings for the year of $100,000. If the investor uses the equity method of accounting for its investment in the investee, the investor's dividend revenue for the year ended on December 31, 2021 should be __________. (If there is no dividend revenue, then enter 0).