| Year |
Month |
Pounds (x1000) |
| 2008 |
December |
0.00 |
|
November |
0.00 |
|
October |
0.00 |
|
September |
0.00 |
|
August |
0.00 |
|
July |
0.00 |
|
June |
1.78 |
|
May |
7.17 |
|
April |
25.30 |
|
March |
13.95 |
|
February |
24.44 |
| 2008 |
January |
16.66 |
| 2007 |
December |
19.31 |
|
November |
42.00 |
|
October |
76.12 |
|
September |
49.97 |
|
August |
38.28 |
|
July |
19.17 |
|
June |
20.92 |
|
May |
21.71 |
|
April |
10.30 |
|
March |
25.95 |
|
February |
18.71 |
| 2007 |
January |
27.86 |
| 2006 |
December |
31.49 |
|
November |
18.33 |
|
October |
21.92 |
|
September |
103.88 |
|
August |
58.18 |
|
July |
88.77 |
|
June |
20.75 |
|
May |
31.69 |
|
April |
23.54 |
|
March |
35.07 |
|
February |
18.34 |
| 2006 |
January |
25.12 |
| 2005 |
December |
47.09 |
|
November |
26.85 |
|
October |
29.54 |
|
September |
10.29 |
|
August |
21.35 |
|
July |
36.17 |
|
June |
59.00 |
|
May |
54.67 |
|
April |
6.76 |
|
March |
1.93 |
|
February |
6.14 |
| 2005 |
January |
16.97 |
| 2004 |
December |
27.89 |
|
November |
29.65 |
|
October |
26.77 |
|
September |
25.59 |
|
August |
104.28 |
|
July |
156.47 |
|
June |
70.78 |
|
May |
10.20 |
|
April |
25.18 |
|
March |
10.32 |
|
February |
12.28 |
| 2004 |
January |
21.03 |
| 2003 |
December |
16.99 |
|
November |
12.39 |
|
October |
17.04 |
|
September |
17.93 |
|
August |
20.09 |
|
July |
33.97 |
|
June |
29.13 |
|
May |
29.97 |
|
April |
25.11 |
|
March |
16.03 |
|
February |
29.71 |
| 2003 |
January |
26.97 |
| 2002 |
December |
73.84 |
|
November |
141.52 |
|
October |
43.19 |
|
September |
49.84 |
|
August |
72.56 |
|
July |
31.18 |
|
June |
10.05 |
|
May |
19.05 |
|
April |
8.87 |
|
March |
9.59 |
|
February |
3.08 |
| 2002 |
January |
8.35 |
| 2001 |
December |
12.07 |
|
November |
9.48 |
|
October |
22.99 |
|
September |
17.75 |
|
August |
35.67 |
|
July |
19.91 |
|
June |
4.97 |
|
May |
3.63 |
|
April |
3.77 |
|
March |
2.45 |
|
February |
0.99 |
| 2001 |
January |
0.58 |
| 2000 |
December |
2.19 |
|
November |
3.45 |
|
October |
1.82 |
|
September |
1.21 |
|
August |
3.61 |
|
July |
2.05 |
|
June |
2.68 |
|
May |
2.82 |
|
April |
4.15 |
|
March |
2.81 |
|
February |
3.96 |
| 2000 |
January |
1.95 |
| 1999 |
December |
1.26 |
|
November |
4.83 |
|
October |
1.87 |
|
September |
3.29 |
|
August |
4.15 |
|
July |
16.57 |
|
June |
6.71 |
|
May |
3.79 |
|
April |
0.76 |
|
March |
1.59 |
|
February |
3.34 |
| 1999 |
January |
2.03 |
| 1998 |
December |
4.58 |
|
November |
0.90 |
|
October |
1.72 |
|
September |
1.47 |
|
August |
1.53 |
|
July |
1.95 |
|
June |
1.35 |
|
May |
0.99 |
|
April |
1.81 |
|
March |
1.89 |
|
February |
1.43 |
| 1998 |
January |
1.83 |
| 1997 |
December |
0.97 |
|
November |
1.18 |
|
October |
2.87 |
|
September |
2.13 |
|
August |
0.73 |
|
July |
1.16 |
|
June |
1.77 |
|
May |
3.71 |
|
April |
5.33 |
|
March |
3.53 |
|
February |
5.26 |
| 1997 |
January |
1.84 |
| 1996 |
December |
5.69 |
|
November |
1.58 |
|
October |
6.25 |
|
September |
3.12 |
|
August |
2.24 |
|
July |
1.97 |
|
June |
3.75 |
|
May |
5.72 |
|
April |
1.15 |
|
March |
4.41 |
|
February |
5.09 |
| 1996 |
January |
13.80 |
| 1995 |
December |
9.68 |
|
November |
20.32 |
|
October |
28.61 |
|
September |
21.42 |
|
August |
14.83 |
|
July |
7.57 |
|
June |
17.16 |
|
May |
9.01 |
|
April |
6.26 |
|
March |
10.21 |
|
February |
10.76 |
| 1995 |
January |
8.68 |
| 1994 |
December |
40.71 |
|
November |
21.01 |
|
October |
18.64 |
|
September |
7.65 |
|
August |
3.33 |
|
July |
17.27 |
|
June |
14.13 |
|
May |
4.79 |
|
April |
2.21 |
|
March |
4.10 |
|
February |
4.56 |
| 1994 |
January |
4.16 |
| 1993 |
December |
2.82 |
|
November |
3.41 |
|
October |
1.83 |
|
September |
3.94 |
|
August |
1.19 |
|
July |
1.17 |
|
June |
1.88 |
|
May |
1.70 |
|
April |
0.88 |
|
March |
0.63 |
|
February |
1.79 |
| 1993 |
January |
2.02 |
| 1992 |
December |
3.74 |
|
November |
5.56 |
|
October |
14.40 |
|
September |
11.69 |
|
August |
7.90 |
|
July |
9.30 |
|
June |
2.75 |
|
May |
2.99 |
|
April |
1.76 |
|
March |
2.39 |
|
February |
8.42 |
| 1992 |
January |
2.32 |
| 1991 |
December |
3.68 |
|
November |
3.46 |
|
October |
2.33 |
|
September |
1.34 |
|
August |
3.08 |
|
July |
1.61 |
|
June |
0.64 |
|
May |
0.81 |
|
April |
4.04 |
|
March |
2.96 |
|
February |
2.60 |
| 1991 |
January |
4.43 |
| 1990 |
December |
2.22 |
|
November |
2.17 |
|
October |
6.12 |
|
September |
1.31 |
|
August |
3.56 |
|
July |
3.40 |
|
June |
0.85 |
|
May |
0.94 |
|
April |
0.72 |
|
March |
0.61 |
|
February |
0.90 |
| 1990 |
January |
16.77 |
| 1989 |
December |
1.78 |
|
November |
9.67 |
|
October |
14.64 |
|
September |
1.22 |
|
August |
2.84 |
|
July |
3.57 |
|
June |
2.86 |
|
May |
15.20 |
|
April |
5.62 |
|
March |
1.51 |
|
February |
7.83 |
| 1989 |
January |
11.33 |
| 1988 |
December |
22.16 |
|
November |
11.86 |
|
October |
13.61 |
|
September |
11.91 |
|
August |
18.65 |
|
July |
18.06 |
|
June |
16.46 |
|
May |
1.67 |
|
April |
0.79 |
|
March |
1.39 |
|
February |
10.65 |
| 1988 |
January |
3.63 |
| 1987 |
December |
16.24 |
|
November |
12.50 |
|
October |
2.16 |
|
September |
12.13 |
|
August |
7.50 |
|
July |
3.82 |
|
June |
9.66 |
|
May |
3.02 |
|
April |
2.80 |
|
March |
7.15 |
|
February |
9.07 |
| 1987 |
January |
18.13 |
| 1986 |
December |
18.74 |
|
November |
11.44 |
|
October |
16.01 |
|
September |
8.17 |
|
August |
21.28 |
|
July |
2.73 |
|
June |
4.13 |
|
May |
6.11 |
|
April |
8.46 |
|
March |
8.89 |
|
February |
8.32 |
| 1986 |
January |
6.99 |
| 1985 |
December |
6.66 |
|
November |
3.54 |
|
October |
4.88 |
|
September |
0.03 |
|
August |
0.69 |
|
July |
1.78 |
|
June |
1.51 |
|
May |
1.39 |
|
April |
2.27 |
|
March |
5.41 |
|
February |
2.25 |
| 1985 |
January |
4.47 |
| 1984 |
December |
2.47 |
|
November |
2.06 |
|
October |
6.22 |
|
September |
0.55 |
|
August |
4.33 |
|
July |
5.97 |
|
June |
32.50 |
|
May |
9.97 |
|
April |
10.28 |
|
March |
8.15 |
|
February |
7.19 |
| 1984 |
January |
25.22 |
| 1983 |
December |
16.80 |
|
November |
19.03 |
|
October |
10.73 |
|
September |
0.50 |
|
August |
1.02 |
|
July |
0.75 |
|
June |
1.69 |
|
May |
0.07 |
|
April |
0.20 |
|
March |
0.11 |
|
February |
0.57 |
| 1983 |
January |
3.37 |
| 1982 |
December |
0.39 |
|
November |
0.63 |
|
October |
1.04 |
|
September |
1.58 |
|
August |
1.83 |
|
July |
2.52 |
|
June |
0.97 |
|
May |
2.42 |
|
April |
0.71 |
|
March |
1.20 |
|
February |
1.39 |
| 1982 |
January |
0.31 |
|