| Year |
Month |
Pounds (x1000) |
| 2008 |
December |
0.00 |
|
November |
0.00 |
|
October |
0.00 |
|
September |
0.00 |
|
August |
93.89 |
|
July |
170.82 |
|
June |
131.41 |
|
May |
104.79 |
|
April |
47.43 |
|
March |
62.62 |
|
February |
55.31 |
| 2008 |
January |
50.23 |
| 2007 |
December |
80.52 |
|
November |
107.08 |
|
October |
139.32 |
|
September |
175.69 |
|
August |
170.20 |
|
July |
143.29 |
|
June |
75.95 |
|
May |
58.36 |
|
April |
43.36 |
|
March |
101.58 |
|
February |
67.05 |
| 2007 |
January |
64.03 |
| 2006 |
December |
97.39 |
|
November |
105.24 |
|
October |
133.92 |
|
September |
151.85 |
|
August |
139.74 |
|
July |
128.95 |
|
June |
79.48 |
|
May |
68.22 |
|
April |
34.72 |
|
March |
41.93 |
|
February |
40.61 |
| 2006 |
January |
49.12 |
| 2005 |
December |
65.55 |
|
November |
95.48 |
|
October |
119.05 |
|
September |
163.98 |
|
August |
190.15 |
|
July |
117.13 |
|
June |
81.70 |
|
May |
66.27 |
|
April |
39.36 |
|
March |
50.38 |
|
February |
54.45 |
| 2005 |
January |
42.58 |
| 2004 |
December |
77.59 |
|
November |
91.51 |
|
October |
119.38 |
|
September |
123.74 |
|
August |
80.32 |
|
July |
54.00 |
|
June |
35.18 |
|
May |
51.64 |
|
April |
30.56 |
|
March |
35.36 |
|
February |
42.60 |
| 2004 |
January |
44.10 |
| 2003 |
December |
84.23 |
|
November |
95.71 |
|
October |
130.92 |
|
September |
130.27 |
|
August |
164.71 |
|
July |
96.63 |
|
June |
54.14 |
|
May |
94.18 |
|
April |
70.29 |
|
March |
84.96 |
|
February |
44.70 |
| 2003 |
January |
44.67 |
| 2002 |
December |
108.66 |
|
November |
130.59 |
|
October |
109.60 |
|
September |
98.10 |
|
August |
69.26 |
|
July |
52.95 |
|
June |
44.21 |
|
May |
68.43 |
|
April |
67.54 |
|
March |
54.90 |
|
February |
46.01 |
| 2002 |
January |
61.82 |
| 2001 |
December |
100.16 |
|
November |
121.95 |
|
October |
133.55 |
|
September |
55.35 |
|
August |
39.76 |
|
July |
36.53 |
|
June |
45.65 |
|
May |
49.83 |
|
April |
27.73 |
|
March |
55.69 |
|
February |
43.24 |
| 2001 |
January |
55.59 |
| 2000 |
December |
85.71 |
|
November |
84.79 |
|
October |
82.47 |
|
September |
52.61 |
|
August |
44.49 |
|
July |
36.97 |
|
June |
42.57 |
|
May |
38.22 |
|
April |
22.99 |
|
March |
65.42 |
|
February |
75.33 |
| 2000 |
January |
55.14 |
| 1999 |
December |
117.35 |
|
November |
135.13 |
|
October |
158.18 |
|
September |
134.24 |
|
August |
65.17 |
|
July |
62.58 |
|
June |
73.84 |
|
May |
90.41 |
|
April |
42.03 |
|
March |
78.01 |
|
February |
84.46 |
| 1999 |
January |
63.82 |
| 1998 |
December |
96.59 |
|
November |
133.65 |
|
October |
123.88 |
|
September |
108.55 |
|
August |
67.03 |
|
July |
64.79 |
|
June |
53.15 |
|
May |
35.72 |
|
April |
25.45 |
|
March |
17.05 |
|
February |
59.34 |
| 1998 |
January |
61.92 |
| 1997 |
December |
73.14 |
|
November |
61.17 |
|
October |
99.65 |
|
September |
41.52 |
|
August |
34.92 |
|
July |
53.34 |
|
June |
78.11 |
|
May |
49.12 |
|
April |
99.01 |
|
March |
49.76 |
|
February |
40.05 |
| 1997 |
January |
24.51 |
| 1996 |
December |
44.19 |
|
November |
60.19 |
|
October |
71.51 |
|
September |
30.23 |
|
August |
28.09 |
|
July |
56.48 |
|
June |
41.95 |
|
May |
87.51 |
|
April |
104.40 |
|
March |
44.27 |
|
February |
26.81 |
| 1996 |
January |
30.20 |
| 1995 |
December |
50.24 |
|
November |
71.34 |
|
October |
70.57 |
|
September |
27.00 |
|
August |
19.59 |
|
July |
29.48 |
|
June |
51.68 |
|
May |
69.12 |
|
April |
22.03 |
|
March |
34.64 |
|
February |
41.30 |
| 1995 |
January |
31.12 |
| 1994 |
December |
56.51 |
|
November |
47.65 |
|
October |
48.39 |
|
September |
18.36 |
|
August |
34.19 |
|
July |
23.69 |
|
June |
42.68 |
|
May |
32.47 |
|
April |
23.70 |
|
March |
37.15 |
|
February |
38.73 |
| 1994 |
January |
31.56 |
| 1993 |
December |
45.59 |
|
November |
47.78 |
|
October |
23.43 |
|
September |
16.96 |
|
August |
28.89 |
|
July |
36.75 |
|
June |
26.20 |
|
May |
32.79 |
|
April |
38.31 |
|
March |
43.53 |
|
February |
26.51 |
| 1993 |
January |
13.65 |
| 1992 |
December |
37.55 |
|
November |
36.96 |
|
October |
49.96 |
|
September |
10.50 |
|
August |
11.78 |
|
July |
16.74 |
|
June |
15.85 |
|
May |
9.90 |
|
April |
12.14 |
|
March |
16.90 |
|
February |
19.01 |
| 1992 |
January |
12.04 |
| 1991 |
December |
31.37 |
|
November |
23.25 |
|
October |
42.92 |
|
September |
11.10 |
|
August |
4.33 |
|
July |
3.18 |
|
June |
6.86 |
|
May |
6.92 |
|
April |
15.81 |
|
March |
15.78 |
|
February |
21.21 |
| 1991 |
January |
14.23 |
| 1990 |
December |
20.37 |
|
November |
25.88 |
|
October |
23.09 |
|
September |
10.03 |
|
August |
5.12 |
|
July |
7.32 |
|
June |
7.53 |
|
May |
16.13 |
|
April |
12.70 |
|
March |
15.95 |
|
February |
8.73 |
| 1990 |
January |
11.87 |
|