The combination of the fileref PRINT and the ODS option in the FILE statement routes the results of the DATA step to ODS. Two ODS destinations, the Listing and the HTML destinations, are open. Because no table definition is specified, ODS uses the default DATA step definition. The VARIABLES= suboption specifies the variables to write to the data component and the order in which to write them. 
   file print ods=(variables=(country
                              type
                              kilotons));