LIST OF TABLES Table Page 1 Weekly basis, 180-200 lb. and 200-240 lb. barrows and gilts, Live Oak, Florida, January 7, 1972-October 31, 1980. 12-18 2 Approximate relationship between week number and month, and week within the month. . . . . ... 19 3 Weight ranges used in the reporting of 180-240 pound barrows and gilts at Live Oak, 1972-1980 . . .. 20 4 Average basis and standard deviation, 180-200 lb. barrows and gilts, and 200-240 lb. barrows and gilts in Florida, January 7, 1972-October 31, 1980 ...... . .. 21