| Year |
Month |
Pounds (x1000) |
| 1968 |
December |
61.84 |
|
November |
35.97 |
|
October |
22.74 |
|
September |
8.28 |
|
August |
5.34 |
|
July |
8.62 |
|
June |
25.88 |
|
May |
81.42 |
|
April |
46.63 |
|
March |
46.39 |
|
February |
33.38 |
| 1968 |
January |
35.16 |
| 1967 |
December |
115.83 |
|
November |
61.99 |
|
October |
31.76 |
|
September |
4.48 |
|
August |
3.64 |
|
July |
4.22 |
|
June |
30.53 |
|
May |
40.77 |
|
April |
40.04 |
|
March |
28.46 |
|
February |
23.69 |
| 1967 |
January |
11.89 |
| 1966 |
December |
70.48 |
|
November |
43.78 |
|
October |
27.67 |
|
September |
8.23 |
|
August |
2.90 |
|
July |
6.53 |
|
June |
30.94 |
|
May |
32.86 |
|
April |
25.34 |
|
March |
23.69 |
|
February |
20.74 |
| 1966 |
January |
24.52 |
| 1965 |
December |
50.78 |
|
November |
32.13 |
|
October |
11.14 |
|
September |
2.40 |
|
August |
0.75 |
|
July |
8.73 |
|
June |
46.23 |
|
May |
64.44 |
|
April |
55.15 |
|
March |
54.24 |
|
February |
32.95 |
| 1965 |
January |
24.26 |
| 1964 |
December |
118.50 |
|
November |
83.95 |
|
October |
21.17 |
|
September |
1.35 |
|
August |
2.17 |
|
July |
13.73 |
|
June |
69.98 |
|
May |
58.24 |
|
April |
32.04 |
|
March |
48.10 |
|
February |
37.17 |
| 1964 |
January |
14.56 |
| 1963 |
December |
68.38 |
|
November |
43.20 |
|
October |
10.74 |
|
September |
3.93 |
|
August |
2.47 |
|
July |
9.13 |
|
June |
49.11 |
|
May |
48.28 |
|
April |
35.25 |
|
March |
28.15 |
|
February |
21.42 |
| 1963 |
January |
14.14 |
| 1962 |
December |
25.39 |
|
November |
16.55 |
|
October |
8.31 |
|
September |
10.11 |
|
August |
6.37 |
|
July |
11.73 |
|
June |
61.83 |
|
May |
57.73 |
|
April |
29.87 |
|
March |
25.24 |
|
February |
13.07 |
| 1962 |
January |
0.10 |
| 1961 |
December |
28.18 |
|
November |
26.35 |
|
October |
8.46 |
|
September |
2.34 |
|
August |
1.92 |
|
July |
8.12 |
|
June |
44.89 |
|
May |
43.46 |
|
April |
22.95 |
|
March |
19.97 |
|
February |
11.70 |
| 1961 |
January |
8.37 |
| 1960 |
December |
30.87 |
|
November |
33.03 |
|
October |
19.84 |
|
September |
3.28 |
|
August |
1.44 |
|
July |
9.60 |
|
June |
38.18 |
|
May |
23.37 |
|
April |
20.08 |
|
March |
15.46 |
|
February |
12.21 |
| 1960 |
January |
8.41 |
| 1959 |
December |
26.94 |
|
November |
36.24 |
|
October |
24.10 |
|
September |
6.07 |
|
August |
1.91 |
|
July |
4.05 |
|
June |
50.88 |
|
May |
34.88 |
|
April |
40.33 |
|
March |
37.13 |
|
February |
23.51 |
| 1959 |
January |
6.58 |
| 1958 |
December |
42.45 |
|
November |
48.38 |
|
October |
34.49 |
|
September |
8.83 |
|
August |
4.29 |
|
July |
13.81 |
|
June |
29.62 |
|
May |
36.56 |
|
April |
27.32 |
|
March |
22.40 |
|
February |
57.65 |
| 1958 |
January |
22.42 |
| 1957 |
December |
22.52 |
|
November |
25.58 |
|
October |
20.32 |
|
September |
7.89 |
|
August |
1.90 |
|
July |
10.50 |
|
June |
18.95 |
|
May |
22.70 |
|
April |
15.80 |
|
March |
44.81 |
|
February |
37.66 |
| 1957 |
January |
15.43 |
| 1956 |
December |
33.38 |
|
November |
13.49 |
|
October |
12.50 |
|
September |
5.49 |
|
August |
7.91 |
|
July |
10.04 |
|
June |
11.80 |
|
May |
16.86 |
|
April |
21.83 |
|
March |
27.52 |
|
February |
39.02 |
| 1956 |
January |
20.53 |
| 1955 |
December |
45.36 |
|
November |
31.25 |
|
October |
18.71 |
|
September |
6.64 |
|
August |
12.00 |
|
July |
12.87 |
|
June |
29.97 |
|
May |
16.56 |
|
April |
20.53 |
|
March |
12.93 |
|
February |
21.18 |
| 1955 |
January |
11.02 |
| 1954 |
December |
13.96 |
|
November |
20.56 |
|
October |
12.17 |
|
September |
4.97 |
|
August |
3.12 |
|
July |
10.66 |
|
June |
42.59 |
|
May |
27.10 |
|
April |
25.92 |
|
March |
16.59 |
|
February |
16.01 |
| 1954 |
January |
10.20 |
| 1953 |
December |
24.32 |
|
November |
19.88 |
|
October |
15.84 |
|
September |
7.25 |
|
August |
5.86 |
|
July |
35.98 |
|
June |
42.42 |
|
May |
36.20 |
|
April |
36.34 |
|
March |
34.92 |
|
February |
63.53 |
| 1953 |
January |
43.77 |
| 1952 |
December |
57.05 |
|
November |
37.01 |
|
October |
31.15 |
|
September |
5.21 |
|
August |
6.52 |
|
July |
16.61 |
|
June |
37.74 |
|
May |
29.76 |
|
April |
26.53 |
|
March |
43.87 |
|
February |
48.01 |
| 1952 |
January |
46.50 |
| 1951 |
December |
16.94 |
|
November |
20.62 |
|
October |
12.11 |
|
September |
6.61 |
|
August |
13.52 |
|
July |
22.58 |
|
June |
59.17 |
|
May |
76.77 |
|
April |
43.13 |
|
March |
52.96 |
|
February |
30.32 |
| 1951 |
January |
17.56 |
| 1950 |
December |
66.53 |
|
November |
70.98 |
|
October |
30.40 |
|
September |
15.42 |
|
August |
11.50 |
|
July |
36.86 |
|
June |
72.79 |
|
May |
53.34 |
|
April |
42.36 |
|
March |
59.27 |
|
February |
42.56 |
| 1950 |
January |
17.58 |
| 1949 |
December |
33.35 |
|
November |
31.30 |
|
October |
26.28 |
|
September |
6.12 |
|
August |
13.64 |
|
July |
16.81 |
|
June |
37.65 |
|
May |
48.99 |
|
April |
46.12 |
|
March |
50.97 |
|
February |
79.50 |
| 1949 |
January |
53.81 |
| 1948 |
December |
82.74 |
|
November |
51.92 |
|
October |
22.65 |
|
September |
12.79 |
|
August |
24.94 |
|
July |
25.35 |
|
June |
53.10 |
|
May |
29.64 |
|
April |
36.19 |
|
March |
42.24 |
|
February |
49.13 |
| 1948 |
January |
27.77 |
|