| Date |
NAV |
| August 31, 2011 |
28.18 |
| August 2, 2011 |
31.03 |
| July 22, 2011 |
31.63 |
| June 30, 2011 |
28.57 |
| May 31, 2011 |
31.31 |
| April 30, 2011 |
33.74 |
| March 31, 2011 |
34.10 |
| February 28, 2011 |
36.93 |
| January 31, 2011 |
35.74 |
|
| Date |
NAV |
| December 31, 2010 |
35.35 |
| November 30, 2010 |
32.41 |
| October 31, 2010 |
27.75 |
| September 30, 2010 |
25.11 |
| August 31, 2010 |
21.96 |
| July 31, 2010 |
20.64 |
| June 30, 2010 |
18.81 |
| May 31, 2010 |
19.97 |
| April 30, 2010 |
22.51 |
| March 31, 2010 |
22.91 |
| February 28, 2010 |
24.11 |
| January 31, 2010 |
24.15 |
| January 04, 2010 |
25.03 |
|
