2009-01-01,1.41,$US/lb
2009-01-02,1.43,$US/lb
2009-01-03,1.46,$US/lb
2009-01-04,1.46,$US/lb
2009-01-05,1.43,$US/lb
2009-01-06,1.58,$US/lb
2009-01-07,1.51,$US/lb
2009-01-08,1.48,$US/lb
2009-01-09,1.51,$US/lb
2009-01-10,1.51,$US/lb
2009-01-11,1.56,$US/lb
2009-01-12,1.42,$US/lb
2009-01-13,1.53,$US/lb
2009-01-14,1.49,$US/lb
2009-01-15,1.47,$US/lb
2009-01-16,1.53,$US/lb
2009-01-17,1.53,$US/lb
2009-01-18,1.53,$US/lb
2009-01-19,1.56,$US/lb
2009-01-20,1.46,$US/lb
2009-01-21,1.46,$US/lb
2009-01-22,1.40,$US/lb
2009-01-23,1.47,$US/lb
2009-01-24,1.47,$US/lb
2009-01-25,1.47,$US/lb
2009-01-26,1.54,$US/lb
2009-01-27,1.48,$US/lb
2009-01-28,1.50,$US/lb
2009-01-29,1.46,$US/lb
2009-01-30,1.43,$US/lb
2009-01-31,1.47,$US/lb
2009-02-01,1.47,$US/lb
2009-02-02,1.43,$US/lb
2009-02-03,1.51,$US/lb
2009-02-04,1.49,$US/lb
2009-02-05,1.49,$US/lb
2009-02-06,1.62,$US/lb
2009-02-07,1.63,$US/lb
2009-02-08,1.63,$US/lb
2009-02-09,1.61,$US/lb
2009-02-10,1.55,$US/lb
2009-02-11,1.54,$US/lb
2009-02-12,1.53,$US/lb
2009-02-13,1.54,$US/lb
2009-02-14,1.54,$US/lb
2009-02-15,1.54,$US/lb
2009-02-16,1.51,$US/lb
2009-02-17,1.43,$US/lb
2009-02-18,1.46,$US/lb
2009-02-19,1.49,$US/lb
2009-02-20,1.42,$US/lb
2009-02-21,1.43,$US/lb
2009-02-22,1.43,$US/lb
2009-02-23,1.45,$US/lb
2009-02-24,1.52,$US/lb
2009-02-25,1.53,$US/lb
2009-02-26,1.57,$US/lb
2009-02-27,1.54,$US/lb
2009-02-28,1.54,$US/lb
2009-03-01,1.54,$US/lb
2009-03-02,1.52,$US/lb
2009-03-03,1.60,$US/lb
2009-03-04,1.71,$US/lb
2009-03-05,1.71,$US/lb
2009-03-06,1.71,$US/lb
2009-03-07,1.71,$US/lb
2009-03-08,1.71,$US/lb
2009-03-09,1.71,$US/lb
2009-03-10,1.71,$US/lb
2009-03-11,1.71,$US/lb
2009-03-12,1.71,$US/lb
2009-03-13,1.71,$US/lb
2009-03-14,1.71,$US/lb
2009-03-15,1.71,$US/lb
2009-03-16,1.71,$US/lb
2009-03-17,1.71,$US/lb
2009-03-18,1.71,$US/lb
2009-03-19,1.71,$US/lb
2009-03-20,1.71,$US/lb
2009-03-21,1.71,$US/lb
2009-03-22,1.71,$US/lb
2009-03-23,1.71,$US/lb
2009-03-24,1.71,$US/lb
2009-03-25,1.71,$US/lb
2009-03-26,1.71,$US/lb
2009-03-27,1.71,$US/lb
2009-03-28,1.71,$US/lb
2009-03-29,1.71,$US/lb
2009-03-30,1.71,$US/lb
2009-03-31,1.71,$US/lb
2009-04-01,1.71,$US/lb
2009-04-02,1.71,$US/lb
2009-04-03,1.71,$US/lb
2009-04-04,1.71,$US/lb
2009-04-05,1.71,$US/lb
2009-04-06,1.71,$US/lb
2009-04-07,1.71,$US/lb
2009-04-08,2.00,$US/lb
2009-04-09,2.07,$US/lb
2009-04-10,2.07,$US/lb
2009-04-11,2.07,$US/lb
2009-04-12,2.07,$US/lb
2009-04-13,2.09,$US/lb
2009-04-14,2.13,$US/lb
2009-04-15,2.21,$US/lb
2009-04-16,2.18,$US/lb
2009-04-17,2.20,$US/lb
2009-04-18,2.20,$US/lb
2009-04-19,2.20,$US/lb
2009-04-20,2.11,$US/lb
2009-04-21,2.08,$US/lb
2009-04-22,2.06,$US/lb
2009-04-23,1.99,$US/lb
2009-04-24,2.05,$US/lb
2009-04-25,2.05,$US/lb
2009-04-26,2.05,$US/lb
2009-04-27,1.99,$US/lb
2009-04-28,1.92,$US/lb
2009-04-29,2.01,$US/lb
2009-04-30,2.05,$US/lb
2009-05-01,2.10,$US/lb
2009-05-02,2.10,$US/lb
2009-05-03,2.10,$US/lb
2009-05-04,2.14,$US/lb
2009-05-05,2.08,$US/lb
2009-05-06,2.19,$US/lb
2009-05-07,2.16,$US/lb
2009-05-08,2.15,$US/lb
2009-05-09,2.15,$US/lb
2009-05-10,2.15,$US/lb
2009-05-11,2.09,$US/lb
2009-05-12,2.09,$US/lb
2009-05-13,2.03,$US/lb
2009-05-14,2.03,$US/lb
2009-05-15,2.02,$US/lb
2009-05-16,2.02,$US/lb
2009-05-17,2.02,$US/lb
2009-05-18,2.07,$US/lb
2009-05-19,2.07,$US/lb
2009-05-20,2.11,$US/lb
2009-05-21,2.05,$US/lb
2009-05-22,2.09,$US/lb
2009-05-23,2.10,$US/lb
2009-05-24,2.10,$US/lb
2009-05-25,2.10,$US/lb
2009-05-26,2.14,$US/lb
2009-05-27,2.12,$US/lb
2009-05-28,2.14,$US/lb
2009-05-29,2.20,$US/lb
2009-05-30,2.20,$US/lb
2009-05-31,2.20,$US/lb
2009-06-01,2.32,$US/lb
2009-06-02,2.30,$US/lb
2009-06-03,2.21,$US/lb
2009-06-04,2.30,$US/lb
2009-06-05,2.28,$US/lb
2009-06-06,2.28,$US/lb
2009-06-07,2.28,$US/lb
2009-06-08,2.25,$US/lb
2009-06-09,2.37,$US/lb
2009-06-10,2.37,$US/lb
2009-06-11,2.45,$US/lb
2009-06-12,2.35,$US/lb
2009-06-13,2.35,$US/lb
2009-06-14,2.35,$US/lb
2009-06-15,2.30,$US/lb
2009-06-16,2.27,$US/lb
2009-06-17,2.27,$US/lb
2009-06-18,2.28,$US/lb
2009-06-19,2.26,$US/lb
2009-06-20,2.26,$US/lb
2009-06-21,2.26,$US/lb
2009-06-22,2.14,$US/lb
2009-06-23,2.21,$US/lb
2009-06-24,2.28,$US/lb
2009-06-25,2.32,$US/lb
2009-06-26,2.31,$US/lb
2009-06-27,2.31,$US/lb
2009-06-28,2.31,$US/lb
2009-06-29,2.33,$US/lb
2009-06-30,2.27,$US/lb
2009-07-01,2.33,$US/lb
2009-07-02,2.31,$US/lb
2009-07-03,2.26,$US/lb
2009-07-04,2.31,$US/lb
2009-07-05,2.31,$US/lb
2009-07-06,2.26,$US/lb
2009-07-07,2.23,$US/lb
2009-07-08,2.16,$US/lb
2009-07-09,2.24,$US/lb
2009-07-10,2.21,$US/lb
2009-07-11,2.21,$US/lb
2009-07-12,2.21,$US/lb
2009-07-13,2.22,$US/lb
2009-07-14,2.30,$US/lb
2009-07-15,2.39,$US/lb
2009-07-16,2.39,$US/lb
2009-07-17,2.42,$US/lb
2009-07-18,2.42,$US/lb
2009-07-19,2.42,$US/lb
2009-07-20,2.42,$US/lb
2009-07-21,2.45,$US/lb
2009-07-22,2.53,$US/lb
2009-07-23,2.52,$US/lb
2009-07-24,2.52,$US/lb
2009-07-25,2.52,$US/lb
2009-07-26,2.52,$US/lb
2009-07-27,2.55,$US/lb
2009-07-28,2.52,$US/lb
2009-07-29,2.48,$US/lb
2009-07-30,2.56,$US/lb
2009-07-31,2.62,$US/lb
2009-08-01,2.62,$US/lb
2009-08-02,2.62,$US/lb
2009-08-03,2.75,$US/lb
2009-08-04,2.80,$US/lb
2009-08-05,2.81,$US/lb
2009-08-06,2.75,$US/lb
2009-08-07,2.77,$US/lb
2009-08-08,2.79,$US/lb
2009-08-09,2.79,$US/lb
2009-08-10,2.77,$US/lb
2009-08-11,2.74,$US/lb
2009-08-12,2.80,$US/lb
2009-08-13,2.87,$US/lb
2009-08-14,2.84,$US/lb
2009-08-15,2.81,$US/lb
2009-08-16,2.81,$US/lb
2009-08-17,2.73,$US/lb
2009-08-18,2.73,$US/lb
2009-08-19,2.78,$US/lb
2009-08-20,2.75,$US/lb
2009-08-21,2.87,$US/lb
2009-08-22,2.88,$US/lb
2009-08-23,2.88,$US/lb
2009-08-24,2.89,$US/lb
2009-08-25,2.85,$US/lb
2009-08-26,2.88,$US/lb
2009-08-27,2.87,$US/lb
2009-08-28,2.95,$US/lb
2009-08-29,2.95,$US/lb
2009-08-30,2.95,$US/lb
2009-08-31,2.83,$US/lb
2009-09-01,2.82,$US/lb
2009-09-02,2.80,$US/lb
2009-09-03,2.87,$US/lb
2009-09-04,2.85,$US/lb
2009-09-05,2.84,$US/lb
2009-09-06,2.87,$US/lb
2009-09-07,2.87,$US/lb
2009-09-08,2.95,$US/lb
2009-09-09,2.92,$US/lb
2009-09-10,2.88,$US/lb
2009-09-11,2.85,$US/lb
2009-09-12,2.85,$US/lb
2009-09-13,2.85,$US/lb
2009-09-14,2.81,$US/lb
2009-09-15,2.85,$US/lb
2009-09-16,2.95,$US/lb
2009-09-17,2.90,$US/lb
2009-09-18,2.78,$US/lb
2009-09-19,2.79,$US/lb
2009-09-20,2.79,$US/lb
2009-09-21,2.81,$US/lb
2009-09-22,2.87,$US/lb
2009-09-23,2.77,$US/lb
2009-09-24,2.69,$US/lb
2009-09-25,2.74,$US/lb
2009-09-26,2.74,$US/lb
2009-09-27,2.74,$US/lb
2009-09-28,2.73,$US/lb
2009-09-29,2.72,$US/lb
2009-09-30,2.82,$US/lb
2009-10-01,2.72,$US/lb
2009-10-02,2.69,$US/lb
2009-10-03,2.68,$US/lb
2009-10-04,2.68,$US/lb
2009-10-05,2.74,$US/lb
2009-10-06,2.78,$US/lb
2009-10-07,2.78,$US/lb
2009-10-08,2.88,$US/lb
2009-10-09,2.84,$US/lb
2009-10-10,2.84,$US/lb
2009-10-11,2.84,$US/lb
2009-10-12,2.83,$US/lb
2009-10-13,2.78,$US/lb
2009-10-14,2.82,$US/lb
2009-10-15,2.86,$US/lb
2009-10-16,2.85,$US/lb
2009-10-17,2.85,$US/lb
2009-10-18,2.85,$US/lb
2009-10-19,2.93,$US/lb
2009-10-20,2.93,$US/lb
2009-10-21,3.00,$US/lb
2009-10-22,2.98,$US/lb
2009-10-23,3.00,$US/lb
2009-10-24,3.03,$US/lb
2009-10-25,3.03,$US/lb
2009-10-26,2.95,$US/lb
2009-10-27,3.00,$US/lb
2009-10-28,2.92,$US/lb
2009-10-29,3.03,$US/lb
2009-10-30,2.96,$US/lb
2009-10-31,2.96,$US/lb
2009-11-01,2.96,$US/lb
2009-11-02,2.95,$US/lb
2009-11-03,2.97,$US/lb
2009-11-04,2.99,$US/lb
2009-11-05,2.96,$US/lb
2009-11-06,2.94,$US/lb
2009-11-07,2.95,$US/lb
2009-11-08,2.95,$US/lb
2009-11-09,2.97,$US/lb
2009-11-10,2.96,$US/lb
2009-11-11,2.96,$US/lb
2009-11-12,2.97,$US/lb
2009-11-13,2.99,$US/lb
2009-11-14,3.00,$US/lb
2009-11-15,3.00,$US/lb
2009-11-16,3.13,$US/lb
2009-11-17,3.13,$US/lb
2009-11-18,3.16,$US/lb
2009-11-19,3.12,$US/lb
2009-11-20,3.15,$US/lb
2009-11-21,3.14,$US/lb
2009-11-22,3.14,$US/lb
2009-11-23,3.16,$US/lb
2009-11-24,3.16,$US/lb
2009-11-25,3.21,$US/lb
2009-11-26,3.20,$US/lb
2009-11-27,3.13,$US/lb
2009-11-28,3.13,$US/lb
2009-11-29,3.13,$US/lb
2009-11-30,3.18,$US/lb
2009-12-01,3.19,$US/lb
2009-12-02,3.26,$US/lb
2009-12-03,3.21,$US/lb
2009-12-04,3.16,$US/lb
2009-12-05,3.23,$US/lb
2009-12-06,3.23,$US/lb
2009-12-07,3.17,$US/lb
2009-12-08,3.17,$US/lb
2009-12-09,3.13,$US/lb
2009-12-10,3.07,$US/lb
2009-12-11,3.13,$US/lb
2009-12-12,3.13,$US/lb
2009-12-13,3.13,$US/lb
2009-12-14,3.15,$US/lb
2009-12-15,3.15,$US/lb
2009-12-16,3.16,$US/lb
2009-12-17,3.12,$US/lb
2009-12-18,3.14,$US/lb
2009-12-19,3.14,$US/lb
2009-12-20,3.14,$US/lb
2009-12-21,3.15,$US/lb
2009-12-22,3.13,$US/lb
2009-12-23,3.21,$US/lb
2009-12-24,3.29,$US/lb
2009-12-25,3.29,$US/lb
2009-12-26,3.29,$US/lb
2009-12-27,3.29,$US/lb
2009-12-28,3.34,$US/lb
2009-12-29,3.30,$US/lb
2009-12-30,3.35,$US/lb
2009-12-31,3.34,$US/lb
2010-01-01,3.34,$US/lb
2010-01-02,3.34,$US/lb
2010-01-03,3.34,$US/lb
2010-01-04,3.39,$US/lb
2010-01-05,3.41,$US/lb
2010-01-06,3.46,$US/lb
2010-01-07,3.43,$US/lb
2010-01-08,3.40,$US/lb
2010-01-09,3.40,$US/lb
2010-01-10,3.40,$US/lb
2010-01-11,3.45,$US/lb
2010-01-12,3.35,$US/lb
2010-01-13,3.40,$US/lb
2010-01-14,3.38,$US/lb
2010-01-15,3.37,$US/lb
2010-01-16,3.37,$US/lb
2010-01-17,3.37,$US/lb
2010-01-18,3.37,$US/lb
2010-01-19,3.45,$US/lb
2010-01-20,3.36,$US/lb
2010-01-21,3.31,$US/lb
2010-01-22,3.35,$US/lb
2010-01-23,3.35,$US/lb
2010-01-24,3.35,$US/lb
2010-01-25,3.39,$US/lb
2010-01-26,3.34,$US/lb
2010-01-27,3.23,$US/lb
2010-01-28,3.10,$US/lb
2010-01-29,3.05,$US/lb
2010-01-30,3.05,$US/lb
2010-01-31,3.05,$US/lb
2010-02-01,3.08,$US/lb
2010-02-02,3.09,$US/lb
2010-02-03,2.99,$US/lb
2010-02-04,2.88,$US/lb
2010-02-05,2.86,$US/lb
2010-02-06,2.86,$US/lb
2010-02-07,2.86,$US/lb
2010-02-08,2.91,$US/lb
2010-02-09,2.99,$US/lb
2010-02-10,2.99,$US/lb
2010-02-11,3.13,$US/lb
2010-02-12,3.10,$US/lb
2010-02-13,3.10,$US/lb
2010-02-14,3.10,$US/lb
2010-02-15,3.10,$US/lb
2010-02-16,3.24,$US/lb
2010-02-17,3.26,$US/lb
2010-02-18,3.31,$US/lb
2010-02-19,3.38,$US/lb
2010-02-20,3.35,$US/lb
2010-02-21,3.35,$US/lb
2010-02-22,3.33,$US/lb
2010-02-23,3.24,$US/lb
2010-02-24,3.25,$US/lb
2010-02-25,3.21,$US/lb
2010-02-26,3.27,$US/lb
2010-02-27,3.27,$US/lb
2010-02-28,3.27,$US/lb
2010-03-01,3.34,$US/lb
2010-03-02,3.41,$US/lb
2010-03-03,3.43,$US/lb
2010-03-04,3.38,$US/lb
2010-03-05,3.41,$US/lb
2010-03-06,3.41,$US/lb
2010-03-07,3.41,$US/lb
2010-03-08,3.41,$US/lb
2010-03-09,3.41,$US/lb
2010-03-10,3.37,$US/lb
2010-03-11,3.38,$US/lb
2010-03-12,3.36,$US/lb
2010-03-13,3.36,$US/lb
2010-03-14,3.36,$US/lb
2010-03-15,3.32,$US/lb
2010-03-16,3.35,$US/lb
2010-03-17,3.41,$US/lb
2010-03-18,3.38,$US/lb
2010-03-19,3.36,$US/lb
2010-03-20,3.36,$US/lb
2010-03-21,3.36,$US/lb
2010-03-22,3.37,$US/lb
2010-03-23,3.36,$US/lb
2010-03-24,3.31,$US/lb
2010-03-25,3.32,$US/lb
2010-03-26,3.39,$US/lb
2010-03-27,3.39,$US/lb
2010-03-28,3.39,$US/lb
2010-03-29,3.52,$US/lb
2010-03-30,3.54,$US/lb
2010-03-31,3.53,$US/lb
2010-04-01,3.53,$US/lb
2010-04-02,3.53,$US/lb
2010-04-03,3.53,$US/lb
2010-04-04,3.53,$US/lb
2010-04-05,3.53,$US/lb
2010-04-06,3.60,$US/lb
2010-04-07,3.59,$US/lb
2010-04-08,3.57,$US/lb
2010-04-09,3.56,$US/lb
2010-04-10,3.56,$US/lb
2010-04-11,3.56,$US/lb
2010-04-12,3.56,$US/lb
2010-04-13,3.58,$US/lb
2010-04-14,3.58,$US/lb
2010-04-15,3.59,$US/lb
2010-04-16,3.50,$US/lb
2010-04-17,3.50,$US/lb
2010-04-18,3.50,$US/lb
2010-04-19,3.52,$US/lb
2010-04-20,3.50,$US/lb
2010-04-21,3.52,$US/lb
2010-04-22,3.51,$US/lb
2010-04-23,3.53,$US/lb
2010-04-24,3.53,$US/lb
2010-04-25,3.53,$US/lb
2010-04-26,3.52,$US/lb
2010-04-27,3.37,$US/lb
2010-04-28,3.37,$US/lb
2010-04-29,3.34,$US/lb
2010-04-30,3.34,$US/lb
2010-05-01,3.34,$US/lb
2010-05-02,3.34,$US/lb
2010-05-03,3.34,$US/lb
2010-05-04,3.17,$US/lb
2010-05-05,3.14,$US/lb
2010-05-06,3.12,$US/lb
2010-05-07,3.13,$US/lb
2010-05-08,3.13,$US/lb
2010-05-09,3.13,$US/lb
2010-05-10,3.22,$US/lb
2010-05-11,3.19,$US/lb
2010-05-12,3.19,$US/lb
2010-05-13,3.23,$US/lb
2010-05-14,3.10,$US/lb
2010-05-15,3.10,$US/lb
2010-05-16,3.10,$US/lb
2010-05-17,2.92,$US/lb
2010-05-18,3.03,$US/lb
2010-05-19,2.96,$US/lb
2010-05-20,2.97,$US/lb
2010-05-21,3.06,$US/lb
2010-05-22,3.08,$US/lb
2010-05-23,3.08,$US/lb
2010-05-24,3.15,$US/lb
2010-05-25,3.05,$US/lb
2010-05-26,3.09,$US/lb
2010-05-27,3.14,$US/lb
2010-05-28,3.09,$US/lb
2010-05-29,3.09,$US/lb
2010-05-30,3.09,$US/lb
2010-05-31,3.09,$US/lb
2010-06-01,3.07,$US/lb
2010-06-02,3.03,$US/lb
2010-06-03,2.96,$US/lb
2010-06-04,2.83,$US/lb
2010-06-05,2.83,$US/lb
2010-06-06,2.83,$US/lb
2010-06-07,2.73,$US/lb
2010-06-08,2.77,$US/lb
2010-06-09,2.86,$US/lb
2010-06-10,2.88,$US/lb
2010-06-11,2.91,$US/lb
2010-06-12,2.91,$US/lb
2010-06-13,2.91,$US/lb
2010-06-14,2.99,$US/lb
2010-06-15,3.02,$US/lb
2010-06-16,3.02,$US/lb
2010-06-17,2.92,$US/lb
2010-06-18,2.90,$US/lb
2010-06-19,2.90,$US/lb
2010-06-20,2.90,$US/lb
2010-06-21,2.95,$US/lb
2010-06-22,2.98,$US/lb
2010-06-23,2.95,$US/lb
2010-06-24,3.01,$US/lb
2010-06-25,3.09,$US/lb
2010-06-26,3.09,$US/lb
2010-06-27,3.09,$US/lb
2010-06-28,3.07,$US/lb
2010-06-29,2.93,$US/lb
2010-06-30,2.90,$US/lb
2010-07-01,2.88,$US/lb
2010-07-02,2.91,$US/lb
2010-07-03,2.91,$US/lb
2010-07-04,2.91,$US/lb
2010-07-05,2.95,$US/lb
2010-07-06,2.96,$US/lb
2010-07-07,3.02,$US/lb
2010-07-08,3.00,$US/lb
2010-07-09,3.04,$US/lb
2010-07-10,3.04,$US/lb
2010-07-11,3.04,$US/lb
2010-07-12,3.00,$US/lb
2010-07-13,3.01,$US/lb
2010-07-14,3.00,$US/lb
2010-07-15,3.00,$US/lb
2010-07-16,2.93,$US/lb
2010-07-17,2.93,$US/lb
2010-07-18,2.93,$US/lb
2010-07-19,2.93,$US/lb
2010-07-20,3.02,$US/lb
2010-07-21,3.10,$US/lb
2010-07-22,3.15,$US/lb
2010-07-23,3.18,$US/lb
2010-07-24,3.18,$US/lb
2010-07-25,3.18,$US/lb
2010-07-26,3.22,$US/lb
2010-07-27,3.21,$US/lb
2010-07-28,3.23,$US/lb
2010-07-29,3.27,$US/lb
2010-07-30,3.29,$US/lb
2010-07-31,3.29,$US/lb
2010-08-01,3.29,$US/lb
2010-08-02,3.37,$US/lb
2010-08-03,3.34,$US/lb
2010-08-04,3.37,$US/lb
2010-08-05,3.34,$US/lb
2010-08-06,3.33,$US/lb
2010-08-07,3.33,$US/lb
2010-08-08,3.33,$US/lb
2010-08-09,3.35,$US/lb
2010-08-10,3.31,$US/lb
2010-08-11,3.25,$US/lb
2010-08-12,3.26,$US/lb
2010-08-13,3.27,$US/lb
2010-08-14,3.27,$US/lb
2010-08-15,3.27,$US/lb
2010-08-16,3.27,$US/lb
2010-08-17,3.34,$US/lb
2010-08-18,3.37,$US/lb
2010-08-19,3.33,$US/lb
2010-08-20,3.29,$US/lb
2010-08-21,3.29,$US/lb
2010-08-22,3.29,$US/lb
2010-08-23,3.29,$US/lb
2010-08-24,3.26,$US/lb
2010-08-25,3.22,$US/lb
2010-08-26,3.31,$US/lb
2010-08-27,3.37,$US/lb
2010-08-28,3.37,$US/lb
2010-08-29,3.37,$US/lb
2010-08-30,3.35,$US/lb
2010-08-31,3.37,$US/lb
2010-09-01,3.42,$US/lb
2010-09-02,3.46,$US/lb
2010-09-03,3.46,$US/lb
2010-09-04,3.46,$US/lb
2010-09-05,3.46,$US/lb
2010-09-06,3.49,$US/lb
2010-09-07,3.45,$US/lb
2010-09-08,3.50,$US/lb