| Dec 31 2012 |
21738 |
554.64 |
| Dec 24 2012 |
21476 |
550.9 |
| Dec 17 2012 |
21472 |
550.9 |
| Dec 10 2012 |
21266 |
550.9 |
| Dec 03 2012 |
21479 |
550.9 |
| Nov 26 2012 |
21381 |
550.9 |
| Nov 19 2012 |
21436 |
550.9 |
| Nov 12 2012 |
21522 |
550.9 |
| Nov 05 2012 |
21545 |
550.9 |
| Oct 29 2012 |
21692 |
550.9 |
| Oct 22 2012 |
22153 |
558.71 |
| Oct 15 2012 |
21483 |
552.84 |
| Oct 02 2012 |
21047 |
557.78 |
| Sep 26 2012 |
21000 |
557.78 |
| Sep 20 2012 |
20550 |
554.53 |
| Sep 13 2012 |
20263 |
554.53 |
| Jan 19 2012 |
19836 |
558.77 |
| Dec 29 2011 |
19950 |
562.06 |
| Dec 13 2011 |
19713 |
562.06 |
| Dec 09 2011 |
19743 |
562.06 |
| Dec 01 2011 |
19761 |
562.06 |
| Nov 25 2011 |
20001 |
562.06 |
| Nov 17 2011 |
19953 |
562.06 |
| Nov 10 2011 |
20277 |
562.06 |
| Nov 04 2011 |
20938 |
571.2 |
| Oct 28 2011 |
20708 |
569.55 |
| Oct 21 2011 |
20830 |
569.55 |
| Oct 14 2011 |
20624 |
569.55 |
| Oct 07 2011 |
19710 |
561.32 |
| Sep 30 2011 |
19497 |
561.32 |
| Sep 27 2011 |
19004 |
561.32 |
