| january 2011 - december 2010 |
0.01 % |
|
january 2011 - january 2010 |
1.97 % |
| february 2011 - january 2011 |
0.69 % |
|
february 2011 - february 2010 |
1.95 % |
| march 2011 - february 2011 |
1.19 % |
|
march 2011 - march 2010 |
1.95 % |
| april 2011 - march 2011 |
0.48 % |
|
april 2011 - april 2010 |
2.10 % |
| may 2011 - april 2011 |
0.16 % |
|
may 2011 - may 2010 |
2.29 % |
| june 2011 - may 2011 |
-0.48 % |
|
june 2011 - june 2010 |
2.29 % |
| july 2011 - june 2011 |
0.05 % |
|
july 2011 - july 2010 |
2.62 % |
| august 2011 - july 2011 |
0.14 % |
|
august 2011 - august 2010 |
2.61 % |
| september 2011 - august 2011 |
0.72 % |
|
september 2011 - september 2010 |
2.71 % |
| october 2011 - september 2011 |
-0.02 % |
|
october 2011 - october 2010 |
2.61 % |
| november 2011 - october 2011 |
-0.13 % |
|
november 2011 - november 2010 |
2.60 % |
| december 2011 - november 2011 |
-0.43 % |
|
december 2011 - december 2010 |
2.38 % |