| Dec 31 2012 |
3984 |
337.75 |
| Dec 24 2012 |
3983 |
337.75 |
| Dec 17 2012 |
3999 |
337.75 |
| Dec 10 2012 |
3958 |
337.75 |
| Dec 03 2012 |
4013 |
337.75 |
| Nov 26 2012 |
2844 |
313.45 |
| Nov 19 2012 |
2916 |
313.45 |
| Nov 12 2012 |
4281 |
343.36 |
| Nov 05 2012 |
4325 |
343.36 |
| Oct 29 2012 |
4358 |
343.36 |
| Oct 22 2012 |
3659 |
329.05 |
| Oct 15 2012 |
2975 |
313.3 |
| Oct 02 2012 |
2889 |
310.07 |
| Sep 26 2012 |
2927 |
310.07 |
| Sep 20 2012 |
2902 |
310.07 |
| Sep 13 2012 |
2866 |
310.07 |
| Jan 19 2012 |
3348 |
331.93 |
| Dec 29 2011 |
3239 |
330.58 |
| Dec 13 2011 |
3212 |
330.59 |
| Dec 09 2011 |
3236 |
330.6 |
| Dec 01 2011 |
3224 |
330.61 |
| Nov 25 2011 |
3573 |
338.57 |
| Nov 17 2011 |
3540 |
338.58 |
| Nov 10 2011 |
3570 |
338.58 |
| Nov 04 2011 |
3770 |
342.62 |
| Oct 28 2011 |
4519 |
358.12 |
| Oct 21 2011 |
5280 |
371.56 |
| Oct 14 2011 |
7767 |
410.18 |
| Oct 07 2011 |
8599 |
423.52 |
| Sep 30 2011 |
10659 |
449.79 |
| Sep 27 2011 |
10405 |
449.81 |
| Sep 23 2011 |
9026 |
433.87 |
| Sep 16 2011 |
8185 |
425.4 |
| Sep 09 2011 |
7996 |
425.4 |
| Jan 13 2011 |
7626 |
421.73 |
| Dec 28 2010 |
7851 |
421.72 |
| Dec 14 2010 |
7845 |
422.22 |
| Dec 03 2010 |
7818 |
421.83 |
| Nov 26 2010 |
7400 |
415.82 |
| Nov 19 2010 |
7587 |
419.58 |
| Nov 12 2010 |
7440 |
419.53 |
| Nov 04 2010 |
7250 |
417.29 |
| Oct 28 2010 |
6525 |
409.21 |
| Oct 22 2010 |
6413 |
409.21 |
| Oct 14 2010 |
6343 |
409.21 |
| Oct 05 2010 |
5978 |
409.93 |
| Sep 29 2010 |
6298 |
413.65 |
| Sep 24 2010 |
6242 |
416.53 |
| Sep 17 2010 |
6039 |
416.53 |
| Sep 10 2010 |
6086 |
419.52 |
| Aug 15 2010 |
5646 |
426.32 |
| Jan 29 2010 |
6107 |
419.52 |
| Jan 15 2010 |
6068 |
419.52 |
| Jan 08 2010 |
5950 |
419.52 |
| Dec 18 2009 |
5665 |
419.52 |
| Dec 09 2009 |
5223 |
412.99 |
| Dec 04 2009 |
5108 |
412.99 |
| Nov 27 2009 |
5707 |
424.37 |
| Nov 20 2009 |
5463 |
424.37 |
| Nov 13 2009 |
5157 |
424.37 |
| Nov 06 2009 |
5506 |
432.75 |
| Oct 30 2009 |
6780 |
440.02 |
| Oct 23 2009 |
6473 |
440.02 |
| Oct 16 2009 |
6399 |
440.39 |
| Oct 09 2009 |
6870 |
451.46 |
| Oct 02 2009 |
6619 |
451.46 |
| Sep 25 2009 |
6425 |
453.93 |
| Sep 18 2009 |
6518 |
458.4 |
| Sep 11 2009 |
6455 |
458.4 |
| Jan 30 2009 |
7216 |
477.15 |
| Jan 09 2009 |
6681 |
477.15 |
| Dec 18 2008 |
6472 |
477.15 |
| Dec 12 2008 |
6191 |
470.2 |
| Dec 05 2008 |
6411 |
474.79 |
| Nov 28 2008 |
6334 |
477.18 |
| Nov 21 2008 |
6305 |
477.18 |
| Nov 14 2008 |
6084 |
477.18 |
| Nov 07 2008 |
5981 |
477.18 |
| Oct 31 2008 |
5181 |
467.87 |
| Oct 24 2008 |
4597 |
453.92 |
| Oct 17 2008 |
4209 |
453.92 |
| Oct 10 2008 |
4072 |
453.92 |
| Oct 03 2008 |
3740 |
453.92 |
| Sep 26 2008 |
3504 |
453.92 |
| Sep 19 2008 |
3547 |
455.97 |
| Feb 01 2008 |
3424 |
455.97 |
| Dec 12 2007 |
2219 |
402.12 |
| Dec 07 2007 |
2208 |
402.12 |
| Nov 30 2007 |
2151 |
402.12 |
| Nov 23 2007 |
2138 |
402.12 |
| Nov 16 2007 |
2510 |
416.06 |
| Nov 09 2007 |
2508 |
416.06 |
| Nov 02 2007 |
2434 |
416.06 |
| Oct 26 2007 |
2416 |
416.06 |
| Oct 19 2007 |
2353 |
416.06 |
| Oct 12 2007 |
2335 |
416.06 |
| Oct 05 2007 |
2162 |
416.06 |
| Sep 28 2007 |
2155 |
416.06 |
| Sep 21 2007 |
2032 |
416.06 |
| Sep 14 2007 |
1976 |
416.06 |
| Aug 24 2007 |
1931 |
416.06 |
| Dec 14 2006 |
1996 |
430 |
| Dec 08 2006 |
1980 |
430 |
| Dec 01 2006 |
1937 |
430 |
| Nov 24 2006 |
1895 |
430 |
