AVERAGE PRICES RECEIVED BY IOWA FARMERS SOWS - DOLLARS PER CWT. (MARKET YEAR IS DECEMBER-NOVEMBER) --------------------------------------------------------------------------- 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 --------------------------------------------------------------------------- DEC 1/ 39.80 32.40 45.80 36.40 39.40 37.00 42.30 31.00 28.90 37.80 JAN 37.70 37.20 48.40 43.00 41.20 36.80 41.90 33.40 32.90 41.00 FEB 37.40 42.10 51.60 42.60 44.60 38.20 41.60 35.50 35.30 41.60 MAR 35.90 43.80 47.60 42.60 41.10 37.30 41.70 34.00 34.30 45.50 APR 35.60 47.70 43.50 44.10 39.70 37.40 45.40 34.80 31.60 47.70 MAY 36.30 51.70 41.00 43.00 36.80 40.90 45.40 37.20 33.80 54.50 JUN 41.90 50.80 36.10 42.60 37.10 45.00 45.40 33.50 34.30 51.60 JUL 43.50 51.30 34.20 43.20 37.00 49.80 46.80 30.90 34.60 49.00 AUG 44.00 53.80 37.20 42.80 35.50 54.50 48.80 33.30 35.60 48.20 SEP 45.10 54.50 39.10 39.80 34.00 54.50 48.40 32.30 37.00 46.50 OCT 41.90 52.10 35.80 39.00 35.90 48.90 44.10 30.90 39.60 49.80 NOV 36.90 46.90 31.50 40.40 37.70 47.00 33.80 27.40 36.70 45.90 MKT YR AVG 40.70 46.60 40.00 41.40 38.10 43.80 43.80 32.70 34.70 46.60 PRICE --------------------------------------------------------------------------- 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 --------------------------------------------------------------------------- DEC 1/ 41.50 29.00 32.30 31.60 21.00 32.80 50.30 34.00 14.60 32.50 JAN 42.80 27.90 32.60 35.10 26.00 33.40 48.00 29.10 15.00 35.50 FEB 44.50 32.10 36.30 38.50 30.90 34.70 48.60 28.80 22.80 41.50 MAR 47.70 34.00 41.10 39.50 33.00 36.90 46.50 28.70 23.70 38.00 APR 47.90 35.20 41.30 39.60 31.00 38.50 47.80 28.20 26.80 41.60 MAY 46.70 38.20 39.00 37.40 29.60 45.50 51.20 31.80 26.00 43.20 JUN 45.00 36.00 37.80 34.00 30.00 46.60 48.00 32.40 30.10 39.20 JUL 42.20 32.80 35.70 30.60 30.50 49.30 48.20 27.00 22.90 37.40 AUG 40.90 35.00 36.80 30.70 35.40 52.30 46.70 23.80 24.30 37.90 SEP 39.50 33.30 38.60 27.90 37.10 49.60 42.00 20.20 25.90 35.80 OCT 37.50 36.90 38.00 25.20 39.90 51.20 39.80 20.70 26.10 35.30 NOV 31.80 33.70 35.60 20.60 33.80 53.60 36.60 16.50 26.70 32.00 MKT YR AVG 42.20 33.20 36.70 31.60 30.20 40.40 47.30 26.30 23.90 36.80 PRICE --------------------------------------------------------------------------- 2001 2002 2003 2004 2005* 2006 2007 2008 2009 2010 --------------------------------------------------------------------------- DEC 1/ 33.50 27.80 24.40 29.90 46.20 JAN 34.40 29.10 23.90 29.60 48.60 FEB 34.50 31.30 26.20 37.00 46.10 MAR 39.00 33.10 27.80 41.30 46.00 APR 42.50 28.40 29.30 44.40 44.50 MAY 40.70 26.30 29.80 46.80 42.50 JUN 43.60 22.80 32.70 48.10 47.40 JUL 43.60 21.40 34.00 54.20 39.80 AUG 41.70 20.90 32.70 47.00 40.50 SEP 38.50 17.70 32.50 43.50 39.60 OCT 36.40 20.90 33.70 44.50 43.00 NOV 30.70 23.60 30.40 51.60 MKT YR AVG 37.80 26.10 30.40 41.00 PRICE --------------------------------------------------------------------------- 1/December of previous year. *Preliminary. **Mid-month price.