IOWA COUNTY YIELDS, BY DISTRICT									STD
Northwest	1995	1996	1997	1998	1999	2000	2001		1995-99		Avg. 1995-1999
Buena Vista	49.10	46.30	48.40	48.80	46.00	37.90			3.85		46.08
Cherokee	48.50	45.80	49.20	51.00	46.50	40.00			3.50		46.83
Clay	45.70	44.50	46.10	50.00	48.20	48.40			1.87		47.15
Dickinson	44.10	45.80	41.00	50.30	43.60	45.00			2.81		44.97
Emmet	44.10	42.20	43.40	48.10	40.20	42.50			2.42		43.42
Lyon	44.50	47.50	46.10	49.90	48.90	49.10			1.87		47.67
O'Brien	47.10	48.30	48.10	50.70	52.30	49.10			1.75		49.27
Osceola	44.80	44.00	43.10	49.50	49.40	45.70			2.51		46.08
Palo Alto	44.60	43.30	44.80	46.70	44.80	45.00			0.99		44.87
Plymouth	46.30	45.50	45.80	48.80	46.10	38.00			3.35		45.08
Pocahontas	48.30	46.40	47.00	46.70	42.30	42.60			2.27		45.55
Sioux	48.50	50.20	49.00	51.70	52.90	48.30			1.70		50.10
Average	46.30	45.82	46.00	49.35	46.77	44.30			1.51		46.42
North Central
Butler	49.20	46.50	45.20	51.70	45.00	45.90			2.42		47.25
Cerro Gordo	46.40	40.30	44.30	49.10	41.40	46.40			3.04		44.65
Floyd	47.60	42.60	44.40	52.20	43.20	46.90			3.26		46.15
Franklin	47.50	44.70	41.80	50.60	43.70	44.50			2.85		45.47
Hancock	45.40	42.30	42.70	48.20	42.90	47.00			2.27		44.75
Humboldt	50.20	46.00	46.30	46.70	41.80	45.30			2.46		46.05
Kossuth	45.10	42.10	43.80	46.90	41.90	45.40			1.80		44.20
Mitchell	49.70	44.40	46.50	50.80	47.80	47.80			2.08		47.83
Winnebago	42.80	39.30	43.60	47.20	40.40	46.30			2.86		43.27
Worth	46.50	42.20	44.30	49.10	42.10	46.90			2.56		45.18
Wright	47.80	44.40	42.80	46.50	43.00	42.30			2.04		44.47
Average	47.11	43.16	44.15	49.00	43.02	45.88			2.17		45.39
Northeast
Allamakee	43.70	47.10	45.70	52.60	47.30	46.70			2.71		47.18
Black Hawk	50.60	45.50	48.20	52.50	50.70	45.40			2.69		48.82
Bremer	50.90	43.30	48.60	53.70	52.00	52.20			3.42		50.12
Buchanan	44.30	45.60	48.20	53.10	49.10	45.10			3.00		47.57
Chickasaw	50.90	39.80	45.80	48.00	46.50	49.80			3.59		46.80
Clayton	51.20	48.00	48.40	53.40	49.60	51.40			1.87		50.33
Delaware	47.70	49.70	51.90	53.70	53.30	53.30			2.20		51.60
Dubuque	45.90	51.30	50.40	53.60	56.00	52.70			3.12		51.65
Fayette	51.50	45.70	47.50	53.70	46.10	49.80			2.90		49.05
Howard	47.00	38.90	44.30	47.10	46.70	47.50			3.02		45.25
Winneshiek	48.00	42.30	46.00	44.70	47.10	50.50			2.57		46.43
Average	48.34	45.20	47.73	51.46	49.49	49.49			1.92		48.62
West Central
Audubon	45.50	41.90	45.10	43.30	39.40	39.50			2.43		42.45
Calhoun	48.20	47.90	45.00	41.00	43.50	39.60			3.22		44.20
Carroll	46.60	43.10	46.20	46.70	38.60	38.60			3.54		43.30
Crawford	44.30	43.50	45.40	47.20	39.00	37.60			3.42		42.83
Greene	48.30	48.50	45.90	46.20	43.80	38.90			3.26		45.27
Guthrie	41.70	42.60	40.80	46.10	42.60	38.50			2.28		42.05
Harrison	38.20	44.60	43.50	40.20	39.40	39.80			2.30		40.95
Ida	48.40	46.10	46.30	48.70	45.10	34.80			4.69		44.90
Monona	35.70	41.30	41.80	43.00	41.40	37.20			2.65		40.07
Sac	46.30	44.00	47.50	45.20	42.90	33.30			4.67		43.20
Shelby	46.50	45.40	47.80	46.90	43.30	38.10			3.26		44.67
Woodbury	38.90	41.00	41.00	44.00	42.30	35.30			2.76		40.42
Average	44.05	44.16	44.69	44.88	41.78	37.60			2.56		42.86
Central
Boone	50.10	46.30	45.00	47.00	42.90	39.70			3.27		45.17
Dallas	45.20	46.60	43.10	48.70	43.60	43.80			1.96		45.17
Grundy	53.50	48.60	50.40	51.70	52.20	47.60			2.05		50.67
Hamilton	49.20	45.60	45.20	47.90	45.30	39.40			3.08		45.43
Hardin	51.80	45.90	45.40	48.00	44.80	43.30			2.74		46.53
Jasper	49.10	44.70	49.80	49.70	49.40	45.50			2.10		48.03
Marshall	52.80	49.30	50.70	51.70	50.60	45.30			2.39		50.07
Polk	50.40	45.00	46.70	45.80	44.50	41.40			2.69		45.63
Poweshiek	42.20	44.10	48.70	49.70	44.30	44.40			2.69		45.57
Story	50.00	47.30	46.40	47.50	44.80	42.80			2.25		46.47
Tama	47.60	46.30	48.60	51.70	50.00	45.10			2.21		48.22
Webster	51.50	47.10	46.00	45.70	45.50	45.50			2.14		46.88
Average	49.45	46.40	47.17	48.76	46.49	43.65			1.87		46.99
East Central
Benton	44.70	46.40	50.50	53.70	47.10	43.20			3.54		47.60
Cedar	46.70	47.10	51.70	54.70	51.10	46.10			3.15		49.57
Clinton	50.10	48.30	51.20	53.70	53.10	45.30			2.86		50.28
Iowa	39.20	42.50	50.50	54.00	43.40	43.50			5.07		45.52
Jackson	41.50	43.10	49.70	54.10	51.10	46.00			4.45		47.58
Johnson	39.90	40.70	48.50	52.30	43.30	40.30			4.67		44.17
Jones	44.60	46.80	50.90	53.70	53.50	45.40			3.72		49.15
Linn	40.00	43.70	47.90	53.80	48.10	43.00			4.46		46.08
Muscatine	43.20	40.70	46.90	49.50	46.90	41.50			3.19		44.78
Scott	50.50	49.80	52.70	55.70	56.40	48.70			2.91		52.30
Average	44.04	44.91	50.05	53.52	49.40	44.30			3.54		47.70
South West
Adair	30.70	37.10	40.10	43.40	42.20	39.50			4.15		38.83
Adams	28.70	40.00	42.30	43.70	39.40	41.20			4.91		39.22
Cass	36.60	40.10	40.20	42.80	41.50	40.50			1.89		40.28
Fremont	34.90	42.10	43.40	39.70	42.30	41.30			2.79		40.62
Mills	35.00	40.90	43.10	41.20	39.90	39.80			2.48		39.98
Montgomery	29.10	40.30	44.80	43.90	40.20	41.70			5.17		40.00
Page	28.80	42.50	45.30	39.20	41.30	42.60			5.30		39.95
Pottawattamie	39.60	43.40	44.70	44.10	43.60	42.80			1.64		43.03
Taylor	24.50	33.80	40.10	39.70	35.20	39.70			5.48		35.50
Average	31.99	40.02	42.67	41.97	40.62	41.01			3.56		39.71
South Central
Appanoose	30.10	36.60	42.10	40.50	35.20	41.00			4.15		37.58
Clarke	24.80	31.10	42.30	38.90	37.90	38.10			5.83		35.52
Decatur	28.80	37.00	44.70	39.70	34.50	39.70			4.94		37.40
Lucas	29.00	35.10	44.80	45.40	37.60	38.30			5.63		38.37
Madison	37.20	37.50	42.30	46.80	42.20	40.30			3.26		41.05
Marion	37.20	38.00	46.00	46.10	44.90	45.00			3.76		42.87
Monroe	30.50	37.00	45.00	41.10	35.20	38.00			4.54		37.80
Ringgold	25.70	33.90	41.40	39.70	36.20	38.70			5.17		35.93
Union	23.80	35.50	42.10	40.70	40.70	39.70			6.29		37.08
Warren	36.10	37.80	44.50	45.80	41.10	42.50			3.45		41.30
Wayne	28.90	36.10	40.30	39.90	34.50	38.70			3.93		36.40
Average	30.19	35.96	43.23	42.24	38.18	40.00			4.36		38.30
Southeast
Davis	30.50	40.20	45.50	46.60	33.70	41.20			5.84		39.62
Des Moines	37.10	43.30	49.60	47.80	42.10	40.50			4.23		43.40
Henry	41.80	45.30	48.90	52.10	40.10	40.30			4.50		44.75
Jefferson	37.80	41.80	45.70	47.00	32.50	37.80			4.99		40.43
Keokuk	41.30	43.00	50.60	47.30	39.50	42.20			3.79		43.98
Lee	38.90	42.70	49.20	46.60	37.80	39.80			4.16		42.50
Louisa	38.90	39.80	46.00	49.50	44.50	37.90			4.21		42.77
Mahaska	43.90	41.10	49.60	51.80	46.20	43.70			3.66		46.05
Van Buren	34.40	39.50	47.00	46.70	31.40	38.40			5.79		39.57
Wapello	39.50	40.50	46.90	47.00	37.30	39.80			3.75		41.83
Washington	42.30	43.80	49.60	50.80	45.40	40.30			3.76		45.37
Average	38.76	41.91	48.05	48.47	39.14	40.17			4.02		42.75
State
Arithmatic Avg.	42.58	43.18	45.97	47.78	43.96	42.95			1.92		44.69
State Average	44.00	44.00	46.00	48.00	44.50	43.00			1.64		44.92
Time unit