15 charts. 1 chart 1888 to 1949. 1 chart 1950 to present. 12 charts by decade from 1890 through 2009 and 1 chart from 2006. Each chart shows the monthly Dow Jones Industrial Average and either the monthly New York Stock Exchange volume (pre-1980) or Consolidated Volume in NYSE Listed Issues (1980 to present).(Our source of volume data (New York Stock Exchange) has stopped publishing volume data. This file was last updated at the end of August, 2018.)