| Sep 20 2012 |
18875 |
531.75 |
| Sep 13 2012 |
18594 |
531.75 |
| Jan 19 2012 |
17854 |
531.75 |
| Dec 29 2011 |
17734 |
531.75 |
| Dec 13 2011 |
17514 |
531.75 |
| Dec 09 2011 |
18345 |
542.68 |
| Dec 01 2011 |
18376 |
542.88 |
| Nov 25 2011 |
18619 |
543.02 |
| Nov 17 2011 |
18600 |
543.21 |
| Nov 10 2011 |
18925 |
543.36 |
| Nov 04 2011 |
18955 |
543.49 |
| Oct 28 2011 |
18830 |
543.63 |
| Oct 21 2011 |
18946 |
543.77 |
| Oct 14 2011 |
18823 |
543.9 |
| Oct 07 2011 |
18468 |
544.03 |
| Sep 30 2011 |
18300 |
544.16 |
| Sep 27 2011 |
17846 |
544.21 |
| Sep 23 2011 |
19504 |
570.45 |
| Sep 16 2011 |
18835 |
570.45 |
| Sep 09 2011 |
18295 |
570.45 |
| Jan 13 2011 |
18015 |
570.45 |
| Dec 28 2010 |
18227 |
570.45 |
| Dec 14 2010 |
18034 |
570.45 |
