Jduda's interactive graph and data of "Commercial banks with assets greater than $15 billion (1984-2017)" is a line chart, showing Number of banks; with Year in the x-axis and Number of banks in the y-axis.. The x-axis shows values from 1981.9829659318636 to 2019.0170340681364. The y-axis shows values from 13.036723163841808 to 81.96327683615819. This visualization has the following annotation: Average for the year. See: "Commercial Banks in the U.S. with Average Assets Greater than $15 Billion," FRED Economic Data, February 15, 2018, accessed April 11, 2018, https://fred.stlouisfed.org/series/USG15NUM.