| Year |
Month |
Pounds (x1000) |
| 1968 |
December |
38.61 |
|
November |
66.42 |
|
October |
40.75 |
|
September |
41.33 |
|
August |
68.66 |
|
July |
90.72 |
|
June |
76.14 |
|
May |
160.84 |
|
April |
104.25 |
|
March |
89.16 |
|
February |
70.17 |
| 1968 |
January |
51.72 |
| 1967 |
December |
68.55 |
|
November |
40.95 |
|
October |
63.58 |
|
September |
96.33 |
|
August |
102.43 |
|
July |
62.22 |
|
June |
66.93 |
|
May |
86.73 |
|
April |
57.33 |
|
March |
66.67 |
|
February |
54.55 |
| 1967 |
January |
60.64 |
| 1966 |
December |
18.91 |
|
November |
45.55 |
|
October |
52.07 |
|
September |
99.86 |
|
August |
59.37 |
|
July |
28.77 |
|
June |
50.81 |
|
May |
76.97 |
|
April |
68.42 |
|
March |
56.50 |
|
February |
22.99 |
| 1966 |
January |
29.63 |
| 1965 |
December |
39.48 |
|
November |
31.75 |
|
October |
65.41 |
|
September |
48.78 |
|
August |
69.27 |
|
July |
39.40 |
|
June |
29.91 |
|
May |
21.98 |
|
April |
29.37 |
|
March |
36.12 |
|
February |
16.37 |
| 1965 |
January |
10.92 |
| 1964 |
December |
17.01 |
|
November |
17.48 |
|
October |
18.42 |
|
September |
7.45 |
|
August |
15.97 |
|
July |
14.58 |
|
June |
16.03 |
|
May |
8.79 |
|
April |
7.88 |
|
March |
12.33 |
|
February |
13.24 |
| 1964 |
January |
8.33 |
| 1963 |
December |
11.90 |
|
November |
6.55 |
|
October |
10.14 |
|
September |
15.07 |
|
August |
13.04 |
|
July |
14.32 |
|
June |
18.37 |
|
May |
9.20 |
|
April |
22.70 |
|
March |
7.63 |
|
February |
9.18 |
| 1963 |
January |
9.91 |
| 1962 |
December |
19.59 |
|
November |
3.95 |
|
October |
16.83 |
|
September |
10.88 |
|
August |
22.41 |
|
July |
18.59 |
|
June |
26.28 |
|
May |
18.82 |
|
April |
16.84 |
|
March |
9.40 |
|
February |
24.02 |
| 1962 |
January |
23.65 |
| 1961 |
December |
24.85 |
|
November |
19.11 |
|
October |
20.89 |
|
September |
16.99 |
|
August |
21.00 |
|
July |
14.56 |
|
June |
31.90 |
|
May |
17.57 |
|
April |
28.26 |
|
March |
42.37 |
|
February |
13.54 |
| 1961 |
January |
34.14 |
| 1960 |
December |
19.01 |
|
November |
38.62 |
|
October |
19.22 |
|
September |
14.11 |
|
August |
18.02 |
|
July |
21.92 |
|
June |
41.20 |
|
May |
26.26 |
|
April |
14.80 |
|
March |
35.33 |
|
February |
25.14 |
| 1960 |
January |
19.55 |
| 1959 |
December |
18.71 |
|
November |
10.94 |
|
October |
17.16 |
|
September |
10.09 |
|
August |
8.56 |
|
July |
11.57 |
|
June |
7.88 |
|
May |
23.15 |
|
April |
14.21 |
|
March |
14.71 |
|
February |
7.37 |
| 1959 |
January |
8.06 |
| 1958 |
December |
10.53 |
|
November |
12.49 |
|
October |
10.43 |
|
September |
14.65 |
|
August |
9.41 |
|
July |
8.98 |
|
June |
40.97 |
|
May |
19.30 |
|
April |
16.06 |
|
March |
9.43 |
|
February |
9.20 |
| 1958 |
January |
12.88 |
| 1957 |
December |
4.87 |
|
November |
8.32 |
|
October |
9.63 |
|
September |
11.34 |
|
August |
5.04 |
|
July |
41.08 |
|
June |
25.60 |
|
May |
22.56 |
|
April |
14.28 |
|
March |
15.87 |
|
February |
8.08 |
| 1957 |
January |
7.10 |
| 1956 |
December |
10.64 |
|
November |
13.26 |
|
October |
10.77 |
|
September |
9.91 |
|
August |
8.45 |
|
July |
12.70 |
|
June |
11.35 |
|
May |
10.06 |
|
April |
23.64 |
|
March |
17.22 |
|
February |
20.80 |
| 1956 |
January |
11.93 |
| 1955 |
December |
26.13 |
|
November |
11.49 |
|
October |
33.90 |
|
September |
11.90 |
|
August |
11.77 |
|
July |
52.37 |
|
June |
33.07 |
|
May |
39.84 |
|
April |
27.47 |
|
March |
32.78 |
|
February |
13.43 |
| 1955 |
January |
21.06 |
| 1954 |
December |
11.00 |
|
November |
18.38 |
|
October |
31.25 |
|
September |
53.61 |
|
August |
20.20 |
|
July |
28.05 |
|
June |
36.03 |
|
May |
11.93 |
|
April |
35.67 |
|
March |
51.89 |
|
February |
17.06 |
| 1954 |
January |
31.67 |
| 1953 |
December |
67.20 |
|
November |
23.77 |
|
October |
22.32 |
|
September |
43.86 |
|
August |
22.88 |
|
July |
28.38 |
|
June |
23.61 |
|
May |
16.94 |
|
April |
12.72 |
|
March |
28.29 |
|
February |
25.85 |
| 1953 |
January |
11.86 |
| 1952 |
December |
13.68 |
|
November |
13.81 |
|
October |
27.34 |
|
September |
16.12 |
|
August |
27.92 |
|
July |
15.25 |
|
June |
41.77 |
|
May |
30.36 |
|
April |
26.88 |
|
March |
64.01 |
|
February |
30.23 |
| 1952 |
January |
22.60 |
| 1951 |
December |
18.08 |
|
November |
29.82 |
|
October |
47.65 |
|
September |
33.44 |
|
August |
24.24 |
|
July |
23.00 |
|
June |
47.54 |
|
May |
54.55 |
|
April |
51.42 |
|
March |
20.30 |
|
February |
31.40 |
| 1951 |
January |
21.22 |
| 1950 |
December |
34.48 |
|
November |
29.60 |
|
October |
50.70 |
|
September |
41.31 |
|
August |
23.82 |
|
July |
31.89 |
|
June |
27.98 |
|
May |
27.82 |
|
April |
35.79 |
|
March |
36.51 |
|
February |
26.44 |
| 1950 |
January |
19.37 |
| 1949 |
December |
33.73 |
|
November |
62.79 |
|
October |
37.20 |
|
September |
59.11 |
|
August |
56.49 |
|
July |
43.41 |
|
June |
55.81 |
|
May |
74.48 |
|
April |
35.55 |
|
March |
29.08 |
|
February |
29.96 |
| 1949 |
January |
99.48 |
| 1948 |
December |
21.49 |
|
November |
27.54 |
|
October |
41.59 |
|
September |
60.56 |
|
August |
52.38 |
|
July |
49.89 |
|
June |
68.23 |
|
May |
85.98 |
|
April |
33.62 |
|
March |
54.93 |
|
February |
24.35 |
| 1948 |
January |
29.23 |
|