| january 2008 - december 2007 |
-0.62 % |
|
january 2008 - january 2007 |
4.28 % |
| february 2008 - january 2008 |
0.16 % |
|
february 2008 - february 2007 |
4.37 % |
| march 2008 - february 2008 |
0.89 % |
|
march 2008 - march 2007 |
4.50 % |
| april 2008 - march 2008 |
1.08 % |
|
april 2008 - april 2007 |
4.19 % |
| may 2008 - april 2008 |
0.68 % |
|
may 2008 - may 2007 |
4.60 % |
| june 2008 - may 2008 |
0.58 % |
|
june 2008 - june 2007 |
5.01 % |
| july 2008 - june 2008 |
-0.48 % |
|
july 2008 - july 2007 |
5.27 % |
| august 2008 - july 2008 |
-0.22 % |
|
august 2008 - august 2007 |
4.90 % |
| september 2008 - august 2008 |
-0.02 % |
|
september 2008 - september 2007 |
4.54 % |
| october 2008 - september 2008 |
0.34 % |
|
october 2008 - october 2007 |
3.56 % |
| november 2008 - october 2008 |
-0.42 % |
|
november 2008 - november 2007 |
2.38 % |
| december 2008 - november 2008 |
-0.51 % |
|
december 2008 - december 2007 |
1.43 % |