| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2010 | $19.58 | $21.75 | $19.57 | $21.37 | 1,033,710,000 |
November 2010 | $20.46 | $21.97 | $19.09 | $19.34 | 1,361,176,300 |
October 2010 | $18.85 | $20.70 | $18.10 | $20.30 | 1,281,432,800 |
September 2010 | $18.01 | $19.43 | $17.91 | $18.64 | 1,273,139,500 |
August 2010 | $19.67 | $19.97 | $17.75 | $17.86 | 1,279,372,100 |
July 2010 | $17.48 | $19.99 | $17.21 | $19.54 | 1,408,590,600 |
June 2010 | $19.33 | $20.39 | $17.37 | $17.42 | 1,671,811,600 |
May 2010 | $23.11 | $23.41 | $18.59 | $19.53 | 1,720,130,200 |
April 2010 | $22.12 | $23.80 | $21.57 | $23.02 | 1,319,029,500 |
March 2010 | $21.68 | $23.04 | $21.28 | $22.07 | 1,110,237,200 |
February 2010 | $21.30 | $21.88 | $20.68 | $21.61 | 1,074,643,300 |
January 2010 | $22.97 | $23.43 | $20.75 | $21.14 | 1,359,650,900 |
December 2009 | $22.14 | $23.63 | $21.94 | $22.86 | 920,605,500 |
November 2009 | $20.69 | $22.61 | $20.47 | $22.06 | 1,018,256,700 |
October 2009 | $18.98 | $21.92 | $18.24 | $20.71 | 1,523,430,100 |
September 2009 | $18.18 | $19.60 | $17.74 | $19.21 | 1,038,979,700 |
August 2009 | $17.69 | $19.04 | $17.10 | $18.41 | 993,250,400 |
July 2009 | $17.86 | $19.10 | $16.34 | $17.47 | 1,517,459,800 |
June 2009 | $15.60 | $18.08 | $15.49 | $17.65 | 1,411,144,700 |
May 2009 | $14.90 | $15.55 | $14.03 | $15.51 | 1,101,122,400 |
April 2009 | $13.45 | $15.64 | $13.42 | $14.95 | 1,562,400,700 |
March 2009 | $11.78 | $13.93 | $10.97 | $13.56 | 1,625,752,800 |
February 2009 | $12.48 | $14.61 | $11.88 | $11.92 | 1,456,213,400 |
January 2009 | $14.31 | $15.39 | $12.28 | $12.53 | 1,564,043,400 |
December 2008 | $14.57 | $15.57 | $13.54 | $14.25 | 1,546,943,400 |
