| Dec 31 2012 |
18912 |
520.74 |
| Dec 24 2012 |
18902 |
520.74 |
| Dec 17 2012 |
18912 |
520.74 |
| Dec 10 2012 |
18738 |
520.74 |
| Dec 03 2012 |
20326 |
537.38 |
| Nov 26 2012 |
17816 |
509.04 |
| Nov 19 2012 |
17888 |
509.04 |
| Nov 12 2012 |
17996 |
509.04 |
| Nov 05 2012 |
18904 |
519.67 |
| Oct 29 2012 |
19038 |
519.67 |
| Oct 22 2012 |
18042 |
509.09 |
| Oct 15 2012 |
17019 |
499.36 |
| Oct 02 2012 |
16481 |
499.36 |
| Sep 26 2012 |
16460 |
499.36 |
| Sep 20 2012 |
16315 |
499.36 |
| Sep 13 2012 |
16076 |
499.36 |
| Jan 19 2012 |
17625 |
528.61 |
| Dec 29 2011 |
17634 |
530.52 |
| Dec 13 2011 |
17416 |
530.55 |
| Dec 09 2011 |
17322 |
528.72 |
| Dec 01 2011 |
17339 |
528.68 |
| Nov 25 2011 |
18642 |
543.3 |
| Nov 17 2011 |
18494 |
541.59 |
| Nov 10 2011 |
18795 |
541.49 |
| Nov 04 2011 |
18854 |
542.06 |
| Oct 28 2011 |
19358 |
550.26 |
| Oct 21 2011 |
19471 |
550.36 |
| Oct 14 2011 |
20297 |
564.7 |
| Oct 07 2011 |
19476 |
557.82 |
| Sep 30 2011 |
19249 |
557.72 |
| Sep 27 2011 |
18393 |
551.97 |
| Sep 23 2011 |
18627 |
557.19 |
| Sep 16 2011 |
17900 |
555.27 |
| Sep 09 2011 |
17398 |
555.27 |
| Jan 13 2011 |
17121 |
555.25 |
| Dec 28 2010 |
17337 |
555.25 |
| Dec 14 2010 |
17676 |
564.05 |
| Dec 03 2010 |
19048 |
583.67 |
| Nov 26 2010 |
18922 |
581 |
| Nov 19 2010 |
19075 |
584.55 |
| Nov 12 2010 |
18747 |
584.53 |
| Nov 04 2010 |
19016 |
585.09 |
| Oct 28 2010 |
18406 |
583.15 |
| Oct 22 2010 |
18139 |
581.32 |
| Oct 14 2010 |
18313 |
588.54 |
| Oct 05 2010 |
17166 |
592.02 |
| Sep 29 2010 |
17660 |
592.02 |
| Sep 24 2010 |
17154 |
595.83 |
| Sep 17 2010 |
16599 |
600.29 |
| Sep 10 2010 |
16242 |
600.29 |
| Aug 15 2010 |
12853 |
586.28 |
| Jan 29 2010 |
16202 |
600.29 |
| Jan 15 2010 |
16146 |
600.29 |
| Jan 08 2010 |
15999 |
600.29 |
| Dec 18 2009 |
15511 |
600.29 |
| Dec 09 2009 |
15235 |
598.7 |
| Dec 04 2009 |
14824 |
598.7 |
| Nov 27 2009 |
14840 |
603.22 |
| Nov 20 2009 |
14326 |
603.22 |
| Nov 13 2009 |
13581 |
603.22 |
| Nov 06 2009 |
13804 |
614.38 |
| Oct 30 2009 |
15489 |
595.73 |
| Oct 23 2009 |
15367 |
603.58 |
| Oct 16 2009 |
15491 |
611.32 |
| Oct 09 2009 |
14447 |
592.67 |
| Oct 02 2009 |
13754 |
592.67 |
| Sep 25 2009 |
12684 |
585.26 |
| Sep 18 2009 |
11496 |
564.39 |
| Sep 11 2009 |
11385 |
564.39 |
| Jan 30 2009 |
11191 |
564.39 |
| Jan 09 2009 |
10199 |
564.39 |
| Dec 18 2008 |
9968 |
564.39 |
| Dec 12 2008 |
9957 |
564.39 |
| Dec 05 2008 |
9997 |
564.39 |
| Nov 28 2008 |
10686 |
592.72 |
| Nov 21 2008 |
10636 |
592.72 |
| Nov 14 2008 |
10315 |
592.72 |
| Nov 07 2008 |
10174 |
592.72 |
