| Dec 31 2012 |
21799 |
555.31 |
| Dec 24 2012 |
21799 |
555.31 |
| Dec 17 2012 |
21795 |
555.31 |
| Dec 10 2012 |
21586 |
555.31 |
| Dec 03 2012 |
21792 |
555.31 |
| Nov 26 2012 |
17587 |
505.96 |
| Nov 19 2012 |
18516 |
516.54 |
| Nov 12 2012 |
18620 |
516.54 |
| Nov 05 2012 |
18640 |
516.54 |
| Oct 29 2012 |
19507 |
524.54 |
| Oct 22 2012 |
19420 |
524.54 |
| Oct 15 2012 |
19236 |
524.54 |
| Oct 02 2012 |
18557 |
524.54 |
| Sep 26 2012 |
18515 |
524.54 |
| Sep 20 2012 |
18309 |
524.54 |
| Sep 13 2012 |
18065 |
524.54 |
| Jan 19 2012 |
18238 |
537.01 |
| Dec 29 2011 |
16566 |
516.28 |
| Dec 13 2011 |
16368 |
516.3 |
| Dec 09 2011 |
16385 |
516.3 |
| Dec 01 2011 |
16363 |
516.31 |
| Nov 25 2011 |
20032 |
562.51 |
| Nov 17 2011 |
19991 |
562.61 |
| Nov 10 2011 |
20330 |
562.68 |
| Nov 04 2011 |
20334 |
562.75 |
| Oct 28 2011 |
20820 |
571.02 |
| Oct 21 2011 |
20947 |
571.01 |
| Oct 14 2011 |
20732 |
571.01 |
| Oct 07 2011 |
20355 |
571.01 |
| Sep 30 2011 |
20156 |
571.01 |
| Sep 27 2011 |
19639 |
571.01 |
| Sep 23 2011 |
19539 |
571.01 |
| Sep 16 2011 |
18873 |
571.01 |
| Sep 09 2011 |
18335 |
571.01 |
| Jan 13 2011 |
18047 |
570.99 |
| Dec 28 2010 |
18259 |
570.99 |
| Dec 14 2010 |
18065 |
570.99 |
| Dec 03 2010 |
18243 |
570.99 |
