28 
BULLETIN 594., U. S. DEPARTMENT OF AGRICULTURE. 
Table V. — Wheat: Trend of yields per acre, 1871-1915. 
[Limitations of soil and climate, reflected in yields per acre, as qualifying price factors.] 
State and geographic division. 
Yield 
per acre, in 5-year averages. 
Comparison of changes in percent- 
ages of the United States average 
as base. 
1911- 
1915. 
1901- 
1905. 
1S91- 
1S95. 
1882- 
1886. 
1871- 
1875. 
1911- 
1915. 
1901- 
1905. 
1891- 
1895. 
1882- 
1886. 
1871- 
1875. 
United States 
Bu. 
15 
Bu. 
14 
Bu, 
13 
Bu. 
12 
Bu. 
12 
P.ct. 
100 
P.ct. 
100 
P.ct. 
100 
P.ct. 
100 
P.ct. 
100 
28 
19 
17 
15 
13 
13 
13 
26 
21 
22 
16 
15 
14 
10 
9 
10 
23 
IS 
20 
15 
15 
13 
10 
9 
10 
19 
16 
16 
14 
13 
13 
8 
6 
8 
17 
15 
16 
14 
12 
13 
9 
9 
13 
""iff 
173 
127 
113 
100 
87 
87 
87 
173 
140 
157 
114 
107 
100 
71 
64 
71 
164 
129 
154 
115 
115 
100 
77 
77 
146 
123 
133 
117 
108 
10S 
67 
50 
67 
142 
125 
133 
Middle Atlantic 
117 
East North Central 
West North Central 
South Atlantic 
East South Central 
West South Central 
Mountain 
Pacific 
100 
108 
75 
75 
108 
""'i33 
New England: 
Maine 
25 
24 
IS 
14 
14 
167 
171 
138 
117 
117 
27 
20 
21 
IS 
17 
ISO 
143 
161 
150 
142 
Middle Atlantic: 
21 
IS 
17 
16 
15 
16 
17 
19 
14 
19 
15 
13 
11 
17 
14 
17 
16 
it 
11 
16 
15 
16 
15 
14 
15 
15 
16 
13 
13 
14 
14 
12 
17 
14 
■ 15 
15 
9 
10 
16 
14 
15 
16 
15 
15 
15 
14 
15 
15 
13 
14 
11 
11 
12 
13 
15 
10 
11 
6 
15 
13 
13 
13 
13 
12 
16 
13 
13 
11 
11 
} " 
13 
15 
11 
12 
8 
10 
6 
6 
6 
13 
15 
14 
12 
11 
12 
13 
14 
15 
12 
12 
12 
14 
11 
11 
8 
10 
6 
140 
120 
113 
107 
100 
107 
113 
127 
93 
127 
100 
f 87 
\ 73 
113 
93 
113 
107 
87 
93 
73 
73 
73 
114 
107 
114 
107 
100 
107 
107 
114 
93 
93 
100 
100 
S6 
121 
100 
107 
107 
64 
71 
50 
50 
50 
123 
108 
115 
123 
115 
115 
115 
108 
115 
115 
100 
108 
S5 
85 
92 
100 
115 
85 
54 
46 
• 54 
125 
108 
108 
10S 
10S 
100 
133 
108 
10S 
92 
92 
10S 
125 
92 
100 
67 
83 
50 
50 
50 
108 
New Jersey 
Pennsylvania 
East North Central: 
Ohio 
Indiana 
Illinois 
Michigan 
125 
117 
100 
92 
100 
10S 
117 
West North Central: 
125 
Iowa 
Missouri 
North Dakota 
100 
100 
South Dakota 
Nebraska 
Kansas 
South Atlantic: 
100 
117 
92 
Maryland 
92 
Virginia 
West Virginia 
North Carolina 
67 
83 
58 
South Carolina 
50 
Georgia 
58 
East South Central: 
Kentucky 
Tennessee 
13 
12 
12 
14 
12 
10 
9 
9 
9 
12 
9 
s 
S 
9 
9 
6 
6 
5 
10 
8 
8 
10 
10 
S7 
80 
80 
93 
SO 
71 
64 
64 
64 
64 
92 
69 
62 
62 
69 
75 
50 
50 
42 
58 
83 
67 
Alabama 
Mississippi 
67 
83 
West South Central: 
Arkansas 
83 
12 
14 
25 
28 
26 
22 
22 
30 
25 
29 
24 
22 
16 
12 
10 
26 
23 
23 
23 
IS 
23 
23 
27 
24 
19 
11 
11 
11 
22 
20 
20 
19 
16 
17 
19 
19 
17 
IS 
13 
SO 
93 
167 
1S7 
173 
147 
147 
200 
167 
193 
160 
147 
107 
S6 
71 
1S6 
164 
164 
164 
129 
164 
164 
193 
171 
136 
79 
S5 
85 
169 
154 
154 
146 
123 
131 
146 
146 
131 
138 
100 
Texas 
10 
18 
17 
17 
19 
14 
14 
17 
IS 
16 
16 
12 
16 
"~2L 
------ 
12 
S6 
150 
142 
142 
15S 
108 
117 
142 
150 
133 
133 
100 
133 
Mountain: 
Montana 
Idaho 
Wyoming 
Colorado"... 
New Mexico 
Utah 
175 
Pacific: 
Washington 
Oregon 
158 
California 
100 
