| Year |
Month |
1000 Pounds |
| 2007 |
December |
9.30 |
|
November |
7.67 |
|
October |
9.00 |
|
September |
7.10 |
|
August |
6.92 |
|
July |
7.12 |
|
June |
6.73 |
|
May |
6.23 |
|
April |
6.12 |
|
March |
8.19 |
|
February |
8.86 |
| 2007 |
January |
9.23 |
| 2006 |
December |
4.87 |
|
November |
4.18 |
|
October |
6.69 |
|
September |
6.02 |
|
August |
6.84 |
|
July |
7.88 |
|
June |
7.27 |
|
May |
7.13 |
|
April |
7.16 |
|
March |
7.74 |
|
February |
5.95 |
| 2006 |
January |
6.15 |
| 2005 |
December |
5.33 |
|
November |
6.37 |
|
October |
6.96 |
|
September |
5.61 |
|
August |
8.35 |
|
July |
7.89 |
|
June |
7.10 |
|
May |
7.88 |
|
April |
7.73 |
|
March |
8.99 |
|
February |
8.19 |
| 2005 |
January |
5.89 |
| 2004 |
December |
6.53 |
|
November |
4.94 |
|
October |
5.53 |
|
September |
4.90 |
|
August |
3.07 |
|
July |
5.95 |
|
June |
5.64 |
|
May |
3.61 |
|
April |
4.58 |
|
March |
5.26 |
|
February |
2.98 |
| 2004 |
January |
3.42 |
| 2003 |
December |
4.80 |
|
November |
4.70 |
|
October |
4.21 |
|
September |
1.11 |
|
August |
1.20 |
|
July |
5.55 |
|
June |
6.10 |
|
May |
5.95 |
|
April |
5.53 |
|
March |
4.32 |
|
February |
4.14 |
| 2003 |
January |
3.78 |
| 2002 |
December |
3.76 |
|
November |
9.03 |
|
October |
10.15 |
|
September |
11.38 |
|
August |
8.82 |
|
July |
6.70 |
|
June |
9.53 |
|
May |
11.47 |
|
April |
9.60 |
|
March |
12.50 |
|
February |
14.34 |
| 2002 |
January |
16.67 |
| 2001 |
December |
12.42 |
|
November |
12.26 |
|
October |
13.00 |
|
September |
17.66 |
|
August |
14.61 |
|
July |
17.53 |
|
June |
17.99 |
|
May |
20.34 |
|
April |
14.44 |
|
March |
17.16 |
|
February |
12.37 |
| 2001 |
January |
15.08 |
| 2000 |
December |
14.93 |
|
November |
14.16 |
|
October |
14.85 |
|
September |
19.81 |
|
August |
15.83 |
|
July |
17.76 |
|
June |
16.87 |
|
May |
20.05 |
|
April |
17.69 |
|
March |
19.72 |
|
February |
15.21 |
| 2000 |
January |
15.18 |
| 1999 |
December |
13.83 |
|
November |
14.98 |
|
October |
14.21 |
|
September |
12.42 |
|
August |
16.17 |
|
July |
14.23 |
|
June |
16.33 |
|
May |
15.96 |
|
April |
16.89 |
|
March |
17.73 |
|
February |
14.67 |
| 1999 |
January |
14.16 |
| 1998 |
December |
11.50 |
|
November |
9.76 |
|
October |
12.54 |
|
September |
9.83 |
|
August |
11.86 |
|
July |
7.46 |
|
June |
7.94 |
|
May |
7.56 |
|
April |
6.68 |
|
March |
7.56 |
|
February |
5.77 |
| 1998 |
January |
3.90 |
| 1997 |
December |
2.15 |
|
November |
3.02 |
|
October |
2.49 |
|
September |
3.55 |
|
August |
4.06 |
|
July |
2.64 |
|
June |
2.76 |
|
May |
1.58 |
|
April |
3.14 |
|
March |
1.56 |
|
February |
2.31 |
| 1997 |
January |
3.41 |
| 1996 |
December |
2.93 |
|
November |
2.57 |
|
October |
2.78 |
|
September |
2.78 |
|
August |
3.62 |
|
July |
3.05 |
|
June |
2.13 |
|
May |
1.08 |
|
April |
3.30 |
|
March |
1.04 |
|
February |
0.09 |
| 1996 |
January |
0.13 |
| 1995 |
December |
0.00 |
|
November |
0.53 |
|
October |
0.47 |
|
September |
0.04 |
|
August |
0.52 |
|
July |
0.85 |
|
June |
0.05 |
|
May |
0.62 |
|
April |
0.34 |
|
March |
0.17 |
|
February |
0.22 |
| 1995 |
January |
0.00 |
| 1994 |
December |
0.15 |
|
November |
0.20 |
|
October |
0.15 |
|
September |
0.04 |
|
August |
0.55 |
|
July |
0.30 |
|
June |
0.43 |
|
May |
1.00 |
|
April |
0.62 |
|
March |
2.12 |
|
February |
1.64 |
| 1994 |
January |
1.46 |
| 1993 |
December |
0.68 |
|
November |
0.29 |
|
October |
1.01 |
|
September |
1.26 |
|
August |
1.49 |
|
July |
0.33 |
|
June |
0.87 |
|
May |
0.76 |
|
April |
0.45 |
|
March |
0.13 |
|
February |
0.42 |
| 1993 |
January |
0.29 |
| 1992 |
December |
0.51 |
|
November |
0.53 |
|
October |
0.33 |
|
September |
0.55 |
|
August |
1.39 |
|
July |
2.29 |
|
June |
0.98 |
|
May |
1.21 |
|
April |
0.68 |
|
March |
0.56 |
|
February |
0.08 |
| 1992 |
January |
0.10 |
| 1991 |
December |
0.18 |
|
November |
0.15 |
|
October |
0.22 |
|
September |
0.27 |
|
August |
0.51 |
|
July |
0.49 |
|
June |
0.44 |
|
May |
0.13 |
|
April |
1.18 |
|
March |
0.19 |
|
February |
0.00 |
| 1991 |
January |
0.08 |
| 1990 |
December |
0.12 |
|
November |
0.00 |
|
October |
0.50 |
|
September |
0.54 |
|
August |
0.20 |
|
July |
1.10 |
|
June |
0.54 |
|
May |
1.10 |
|
April |
0.77 |
|
March |
0.08 |
|
February |
0.31 |
| 1990 |
January |
0.07 |
| 1989 |
December |
0.06 |
|
November |
0.55 |
|
October |
0.29 |
|
September |
2.04 |
|
August |
2.10 |
|
July |
1.34 |
|
June |
1.76 |
|
May |
0.74 |
|
April |
0.66 |
|
March |
0.02 |
|
February |
0.24 |
| 1989 |
January |
0.07 |
| 1988 |
December |
0.50 |
|
November |
0.32 |
|
October |
1.35 |
|
September |
1.23 |
|
August |
3.07 |
|
July |
0.99 |
|
June |
1.77 |
|
May |
2.51 |
|
April |
1.72 |
|
March |
1.07 |
|
February |
0.51 |
| 1988 |
January |
0.60 |
| 1987 |
December |
0.52 |
|
November |
0.38 |
|
October |
0.95 |
|
September |
0.82 |
|
August |
1.36 |
|
July |
0.66 |
|
June |
1.21 |
|
May |
2.95 |
|
April |
2.00 |
|
March |
1.46 |
|
February |
0.84 |
| 1987 |
January |
1.08 |
| 1986 |
December |
0.94 |
|
November |
0.83 |
|
October |
0.97 |
|
September |
0.97 |
|
August |
1.71 |
|
July |
2.12 |
|
June |
1.72 |
|
May |
1.65 |
|
April |
0.96 |
|
March |
0.22 |
|
February |
0.58 |
| 1986 |
January |
0.48 |
| 1985 |
December |
0.53 |
|
November |
0.48 |
|
October |
0.40 |
|
September |
0.75 |
|
August |
2.39 |
|
July |
2.97 |
|
June |
2.02 |
|
May |
1.61 |
|
April |
2.93 |
|
March |
3.55 |
|
February |
0.57 |
| 1985 |
January |
1.34 |
| 1984 |
December |
0.68 |
|
November |
0.49 |
|
October |
0.46 |
|
September |
0.68 |
|
August |
0.41 |
|
July |
1.49 |
|
June |
1.76 |
|
May |
3.66 |
|
April |
3.91 |
|
March |
3.08 |
|
February |
1.88 |
| 1984 |
January |
0.95 |
| 1983 |
December |
0.69 |
|
November |
0.47 |
|
October |
0.34 |
|
September |
0.23 |
|
August |
0.86 |
|
July |
0.94 |
|
June |
0.80 |
|
May |
0.73 |
|
April |
0.22 |
|
March |
0.14 |
|
February |
0.21 |
| 1983 |
January |
0.45 |
| 1982 |
December |
0.20 |
|
November |
0.24 |
|
October |
0.04 |
|
September |
0.07 |
|
August |
0.23 |
|
July |
0.07 |
|
June |
0.41 |
|
May |
0.14 |
|
April |
0.13 |
|
March |
0.08 |
|
February |
0.06 |
| 1982 |
January |
0.09 |
| 1981 |
December |
0.03 |
|
November |
0.23 |
|
October |
0.27 |
|
September |
0.40 |
|
August |
0.28 |
|
July |
0.53 |
|
June |
0.59 |
|
May |
0.65 |
|
April |
0.04 |
|
March |
0.08 |
|
February |
0.06 |
| 1981 |
January |
0.19 |
| 1980 |
December |
0.08 |
|
November |
0.53 |
|
October |
0.19 |
|
September |
0.24 |
|
August |
0.60 |
|
July |
0.39 |
|
June |
0.97 |
|
May |
0.68 |
|
April |
0.58 |
|
March |
0.14 |
|
February |
0.30 |
| 1980 |
January |
0.95 |
|