| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2006 | $20.59 | $21.31 | $20.29 | $21.03 | 1,137,160,900 |
November 2006 | $20.20 | $21.13 | $20.06 | $20.68 | 1,239,142,000 |
October 2006 | $19.18 | $20.25 | $19.06 | $20.15 | 1,290,967,400 |
September 2006 | $18.17 | $19.32 | $17.82 | $19.20 | 1,097,482,600 |
August 2006 | $16.80 | $18.43 | $16.68 | $18.04 | 1,134,188,400 |
July 2006 | $16.46 | $17.21 | $15.55 | $16.83 | 1,332,298,100 |
June 2006 | $15.90 | $16.54 | $15.01 | $16.30 | 1,971,637,200 |
May 2006 | $16.94 | $17.42 | $15.70 | $15.84 | 2,309,193,400 |
April 2006 | $19.28 | $19.47 | $16.72 | $16.83 | 1,446,126,900 |
March 2006 | $18.80 | $19.66 | $18.55 | $18.96 | 1,437,940,900 |
February 2006 | $19.41 | $19.49 | $18.29 | $18.72 | 1,047,699,000 |
January 2006 | $18.23 | $19.71 | $18.12 | $19.55 | 1,388,622,700 |
December 2005 | $19.25 | $19.51 | $18.12 | $18.16 | 1,271,695,500 |
November 2005 | $17.73 | $19.62 | $17.73 | $19.22 | 1,444,948,300 |
October 2005 | $17.80 | $17.86 | $16.79 | $17.79 | 1,439,659,900 |
September 2005 | $18.96 | $18.96 | $17.39 | $17.81 | 1,348,861,500 |
August 2005 | $17.82 | $19.29 | $17.78 | $18.96 | 1,441,979,300 |
July 2005 | $17.15 | $18.28 | $16.91 | $17.68 | 1,321,407,700 |
June 2005 | $17.76 | $17.95 | $17.13 | $17.15 | 1,303,029,500 |
May 2005 | $17.36 | $18.01 | $16.95 | $17.81 | 1,270,563,700 |
April 2005 | $16.68 | $17.51 | $16.47 | $17.41 | 1,520,253,700 |
March 2005 | $17.33 | $17.75 | $16.39 | $16.63 | 1,541,411,300 |
February 2005 | $18.01 | $18.18 | $17.29 | $17.31 | 1,361,126,000 |
January 2005 | $18.38 | $18.59 | $17.59 | $18.03 | 1,521,414,300 |
December 2004 | $18.49 | $18.82 | $18.30 | $18.33 | 1,803,777,700 |