By default, PROC PRINT identifies each observation by number under the column heading Obs.
Monthly Price Per Unit and Sale Type for Each Country 1 Sale_ Obs Country Price Type 1 Antarctica 92.6 Internet 2 Puerto Rico 51.2 Catalog 3 Virgin Islands (U.S.) 31.1 In Store 4 Aruba 123.7 Catalog 5 Bahamas 113.4 Catalog 6 Bermuda 41.0 Catalog 7 Belize 146.4 In Store 8 British Virgin Islands 40.2 Catalog 9 Canada 11.8 Catalog 10 Cayman Islands 71.0 In Store *prices in USD |