| Date | Value |
|---|
| Sep 10, 2010 | 607.37 |
| Sep 09, 2010 | 608.21 |
| Sep 08, 2010 | 616.02 |
| Sep 07, 2010 | 605.93 |
| Sep 06, 2010 | 611.06 |
| Sep 03, 2010 | 610.42 |
| Sep 02, 2010 | 610.91 |
| Sep 01, 2010 | 605.30 |
| Aug 31, 2010 | 596.04 |
| Aug 27, 2010 | 589.19 |
| Aug 26, 2010 | 582.52 |
| Aug 25, 2010 | 575.11 |
| Aug 24, 2010 | 584.98 |
| Aug 23, 2010 | 586.78 |
| Aug 20, 2010 | 583.87 |
| Aug 19, 2010 | 595.86 |
| Aug 18, 2010 | 586.98 |
| Aug 17, 2010 | 584.61 |
| Aug 16, 2010 | 578.84 |
| Aug 13, 2010 | 578.68 |
| Aug 12, 2010 | 576.08 |
| Aug 11, 2010 | 569.89 |
| Aug 10, 2010 | 564.71 |
| Aug 09, 2010 | 575.52 |
| Aug 06, 2010 | 579.26 |
| Aug 05, 2010 | 575.04 |
| Aug 04, 2010 | 573.13 |
| Aug 03, 2010 | 571.13 |
| Aug 02, 2010 | 577.08 |
| Jul 30, 2010 | 569.24 |
| Jul 29, 2010 | 566.46 |
| Jul 28, 2010 | 563.89 |
| Jul 27, 2010 | 561.30 |
| Jul 26, 2010 | 557.90 |
| Jul 23, 2010 | 556.48 |
| Jul 22, 2010 | 553.97 |
| Jul 21, 2010 | 545.12 |
| Jul 20, 2010 | 521.76 |
| Jul 19, 2010 | 518.69 |
| Jul 16, 2010 | 529.05 |
| Jul 15, 2010 | 535.36 |
| Jul 14, 2010 | 542.53 |
| Jul 13, 2010 | 540.82 |
| Jul 12, 2010 | 543.91 |
| Jul 09, 2010 | 543.65 |
| Jul 08, 2010 | 541.17 |
| Jul 07, 2010 | 536.02 |
| Jul 06, 2010 | 534.83 |
| Jul 05, 2010 | 530.41 |
| Jul 02, 2010 | 530.33 |
| Jul 01, 2010 | 531.61 |
| Jun 30, 2010 | 546.92 |
| Jun 29, 2010 | 556.90 |
| Jun 28, 2010 | 567.81 |
| Jun 25, 2010 | 554.44 |
| Jun 24, 2010 | 547.73 |
| Jun 23, 2010 | 552.12 |
| Jun 22, 2010 | 543.63 |
| Jun 21, 2010 | 549.67 |
| Jun 18, 2010 | 527.03 |
| Jun 17, 2010 | 540.35 |
| Jun 16, 2010 | 553.15 |
| Jun 15, 2010 | 557.44 |
| Jun 14, 2010 | 557.03 |
| Jun 11, 2010 | 549.81 |
| Jun 10, 2010 | 539.37 |
| Jun 09, 2010 | 542.96 |
| Jun 08, 2010 | 528.22 |
| Jun 07, 2010 | 531.27 |
| Jun 04, 2010 | 546.97 |
| Jun 03, 2010 | 557.30 |
| Jun 02, 2010 | 556.80 |
| Jun 01, 2010 | 570.26 |
| May 28, 2010 | 574.68 |
| May 27, 2010 | 575.58 |
| May 26, 2010 | 571.71 |
| May 25, 2010 | 564.84 |
| May 24, 2010 | 563.30 |
| May 21, 2010 | 547.21 |
| May 20, 2010 | 543.61 |
| May 19, 2010 | 547.52 |
| May 18, 2010 | 548.97 |
| May 17, 2010 | 562.44 |
| May 14, 2010 | 574.47 |
| May 12, 2010 | 575.57 |
| May 11, 2010 | 559.17 |
| May 10, 2010 | 567.36 |
| May 07, 2010 | 553.47 |
| May 06, 2010 | 559.36 |
| May 05, 2010 | 541.45 |
| May 04, 2010 | 562.57 |
| Apr 30, 2010 | 568.71 |
| Apr 29, 2010 | 573.95 |
| Apr 28, 2010 | 577.00 |
| Apr 27, 2010 | 589.92 |
| Apr 26, 2010 | 598.22 |
| Apr 23, 2010 | 591.41 |
| Apr 22, 2010 | 589.80 |
| Apr 21, 2010 | 588.05 |
| Apr 20, 2010 | 591.92 |
| Apr 19, 2010 | 585.37 |
| Apr 16, 2010 | 599.79 |
| Apr 15, 2010 | 597.26 |
| Apr 14, 2010 | 597.69 |
| Apr 13, 2010 | 592.49 |
| Apr 12, 2010 | 597.43 |
| Apr 09, 2010 | 604.59 |
| Apr 08, 2010 | 601.12 |
| Apr 07, 2010 | 607.81 |
| Apr 06, 2010 | 608.44 |
| Apr 01, 2010 | 599.35 |
| Mar 31, 2010 | 596.36 |
| Mar 30, 2010 | 593.04 |
| Mar 29, 2010 | 581.77 |
| Mar 26, 2010 | 574.82 |
| Mar 25, 2010 | 565.35 |
| Mar 24, 2010 | 562.78 |
| Mar 23, 2010 | 564.50 |
| Mar 22, 2010 | 555.82 |
| Mar 19, 2010 | 565.17 |
| Mar 18, 2010 | 561.88 |
| Mar 17, 2010 | 558.52 |
| Mar 16, 2010 | 550.24 |
| Mar 15, 2010 | 549.20 |
| Mar 12, 2010 | 557.23 |
| Mar 11, 2010 | 555.98 |
| Mar 10, 2010 | 567.64 |
| Mar 09, 2010 | 560.62 |
| Mar 08, 2010 | 567.72 |
| Mar 05, 2010 | 564.82 |
| Mar 04, 2010 | 562.33 |
| Mar 03, 2010 | 563.46 |
| Mar 02, 2010 | 558.71 |
| Mar 01, 2010 | 556.89 |
| Feb 26, 2010 | 535.64 |
| Feb 25, 2010 | 537.24 |
| Feb 24, 2010 | 533.79 |
| Feb 23, 2010 | 546.12 |
| Feb 22, 2010 | 554.81 |
| Feb 19, 2010 | 548.20 |
| Feb 18, 2010 | 537.62 |
| Feb 17, 2010 | 533.36 |
| Feb 16, 2010 | 523.27 |
| Feb 15, 2010 | 517.26 |
| Feb 12, 2010 | 514.31 |
| Feb 11, 2010 | 500.55 |
| Feb 10, 2010 | 494.29 |
| Feb 09, 2010 | 487.76 |
| Feb 08, 2010 | 478.17 |
| Feb 05, 2010 | 470.13 |
| Feb 04, 2010 | 489.36 |
| Feb 03, 2010 | 503.83 |
| Feb 02, 2010 | 506.79 |
| Feb 01, 2010 | 494.95 |
| Jan 29, 2010 | 505.42 |
| Jan 28, 2010 | 517.72 |
| Jan 27, 2010 | 529.08 |
| Jan 26, 2010 | 533.38 |
| Jan 25, 2010 | 537.16 |
| Jan 22, 2010 | 527.56 |
| Jan 21, 2010 | 536.99 |
| Jan 20, 2010 | 540.80 |
| Jan 19, 2010 | 534.73 |
| Jan 18, 2010 | 536.27 |
| Jan 15, 2010 | 528.91 |
| Jan 14, 2010 | 528.46 |
| Jan 13, 2010 | 522.11 |
| Jan 12, 2010 | 526.89 |
| Jan 11, 2010 | 543.00 |
| Jan 08, 2010 | 535.08 |
| Jan 07, 2010 | 544.04 |
| Jan 06, 2010 | 543.10 |
| Jan 05, 2010 | 529.89 |
| Jan 04, 2010 | 532.76 |
| Dec 31, 2009 | 524.32 |
| Dec 30, 2009 | 523.43 |
| Dec 29, 2009 | 514.05 |
| Dec 24, 2009 | 504.97 |
| Dec 23, 2009 | 498.45 |
| Dec 22, 2009 | 494.25 |
| Dec 21, 2009 | 493.82 |
| Dec 18, 2009 | 490.37 |
| Dec 17, 2009 | 494.87 |
| Dec 16, 2009 | 490.71 |
| Dec 15, 2009 | 481.43 |
| Dec 14, 2009 | 486.78 |
| Dec 11, 2009 | 479.16 |
| Dec 10, 2009 | 475.83 |
| Dec 09, 2009 | 483.93 |
| Dec 08, 2009 | 484.32 |
| Dec 07, 2009 | 481.48 |
| Dec 04, 2009 | 479.88 |
| Dec 03, 2009 | 480.98 |
| Dec 02, 2009 | 481.13 |
| Dec 01, 2009 | 477.45 |
| Nov 30, 2009 | 466.80 |
| Nov 27, 2009 | 466.98 |
| Nov 26, 2009 | 471.54 |
| Nov 25, 2009 | 472.27 |
| Nov 24, 2009 | 472.91 |
| Nov 23, 2009 | 477.64 |
| Nov 20, 2009 | 466.65 |
| Nov 19, 2009 | 468.70 |
| Nov 18, 2009 | 476.55 |
| Nov 17, 2009 | 467.41 |
| Nov 16, 2009 | 461.36 |
| Nov 13, 2009 | 450.16 |
| Nov 12, 2009 | 446.79 |
| Nov 11, 2009 | 452.26 |
| Nov 10, 2009 | 445.36 |
| Nov 09, 2009 | 451.68 |
| Nov 06, 2009 | 452.77 |
| Nov 05, 2009 | 453.29 |
| Nov 04, 2009 | 458.80 |
| Nov 03, 2009 | 450.80 |
| Nov 02, 2009 | 451.47 |
| Oct 30, 2009 | 457.76 |
| Oct 29, 2009 | 449.89 |
| Oct 28, 2009 | 451.76 |
| Oct 27, 2009 | 454.77 |
| Oct 26, 2009 | 457.72 |
| Oct 23, 2009 | 454.99 |
| Oct 22, 2009 | 452.01 |
| Oct 21, 2009 | 438.32 |
| Oct 20, 2009 | 444.03 |
| Oct 19, 2009 | 432.81 |
| Oct 16, 2009 | 426.85 |
| Oct 15, 2009 | 420.81 |
| Oct 14, 2009 | 428.73 |
| Oct 13, 2009 | 437.07 |
| Oct 12, 2009 | 435.97 |
| Oct 09, 2009 | 438.57 |
| Oct 08, 2009 | 436.25 |
| Oct 07, 2009 | 426.00 |
| Oct 06, 2009 | 423.98 |
| Oct 05, 2009 | 414.00 |
| Oct 02, 2009 | 417.79 |
| Oct 01, 2009 | 431.91 |
| Sep 30, 2009 | 432.20 |
| Sep 29, 2009 | 421.46 |
| Sep 28, 2009 | 416.77 |
| Sep 25, 2009 | 419.72 |
| Sep 24, 2009 | 425.97 |
| Sep 23, 2009 | 427.31 |
| Sep 22, 2009 | 439.20 |
| Sep 21, 2009 | 429.14 |
| Sep 18, 2009 | 437.29 |
| Sep 17, 2009 | 441.59 |
| Sep 16, 2009 | 444.08 |
| Sep 15, 2009 | 435.15 |
| Sep 14, 2009 | 436.37 |
| Sep 11, 2009 | 444.49 |
| Sep 10, 2009 | 447.55 |