| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2010 | $19.56 | $21.72 | $19.55 | $21.35 | 1,033,710,000 |
November 2010 | $20.43 | $21.95 | $19.07 | $19.32 | 1,361,176,300 |
October 2010 | $18.83 | $20.68 | $18.08 | $20.27 | 1,281,432,800 |
September 2010 | $17.99 | $19.41 | $17.89 | $18.62 | 1,273,139,500 |
August 2010 | $19.65 | $19.95 | $17.73 | $17.84 | 1,279,372,100 |
July 2010 | $17.46 | $19.97 | $17.19 | $19.52 | 1,408,590,600 |
June 2010 | $19.30 | $20.36 | $17.35 | $17.40 | 1,671,811,600 |
May 2010 | $23.09 | $23.38 | $18.57 | $19.51 | 1,720,130,200 |
April 2010 | $22.09 | $23.77 | $21.54 | $22.99 | 1,319,029,500 |
March 2010 | $21.66 | $23.01 | $21.26 | $22.05 | 1,110,237,200 |
February 2010 | $21.27 | $21.85 | $20.66 | $21.58 | 1,074,643,300 |
January 2010 | $22.94 | $23.41 | $20.72 | $21.11 | 1,359,650,900 |
December 2009 | $22.12 | $23.60 | $21.92 | $22.84 | 920,605,500 |
November 2009 | $20.66 | $22.58 | $20.45 | $22.03 | 1,018,256,700 |
October 2009 | $18.95 | $21.89 | $18.22 | $20.68 | 1,523,430,100 |
September 2009 | $18.16 | $19.58 | $17.72 | $19.19 | 1,038,979,700 |
August 2009 | $17.67 | $19.01 | $17.08 | $18.39 | 993,250,400 |
July 2009 | $17.84 | $19.08 | $16.32 | $17.45 | 1,517,459,800 |
June 2009 | $15.58 | $18.05 | $15.47 | $17.63 | 1,411,144,700 |
May 2009 | $14.88 | $15.53 | $14.01 | $15.50 | 1,101,122,400 |
April 2009 | $13.44 | $15.63 | $13.40 | $14.93 | 1,562,400,700 |
March 2009 | $11.76 | $13.92 | $10.96 | $13.54 | 1,625,752,800 |
February 2009 | $12.47 | $14.59 | $11.87 | $11.90 | 1,456,213,400 |
January 2009 | $14.30 | $15.37 | $12.26 | $12.52 | 1,564,043,400 |
December 2008 | $14.55 | $15.56 | $13.52 | $14.23 | 1,546,943,400 |
