| january 2011 - december 2010 |
0.41 % |
|
january 2011 - january 2010 |
4.90 % |
| february 2011 - january 2011 |
0.73 % |
|
february 2011 - february 2010 |
4.16 % |
| march 2011 - february 2011 |
0.42 % |
|
march 2011 - march 2010 |
3.99 % |
| april 2011 - march 2011 |
0.87 % |
|
april 2011 - april 2010 |
4.26 % |
| may 2011 - april 2011 |
2.42 % |
|
may 2011 - may 2010 |
7.17 % |
| june 2011 - may 2011 |
-1.43 % |
|
june 2011 - june 2010 |
6.24 % |
| july 2011 - june 2011 |
-0.41 % |
|
july 2011 - july 2010 |
6.31 % |
| august 2011 - july 2011 |
0.73 % |
|
august 2011 - august 2010 |
6.65 % |
| september 2011 - august 2011 |
0.75 % |
|
september 2011 - september 2010 |
6.15 % |
| october 2011 - september 2011 |
3.27 % |
|
october 2011 - october 2010 |
7.66 % |
| november 2011 - october 2011 |
1.73 % |
|
november 2011 - november 2010 |
9.48 % |
| december 2011 - november 2011 |
0.58 % |
|
december 2011 - december 2010 |
10.45 % |