| january 1998 - december 1997 |
3.88 % |
|
january 1998 - january 1997 |
13.01 % |
| february 1998 - january 1998 |
0.60 % |
|
february 1998 - february 1997 |
13.30 % |
| march 1998 - february 1998 |
0.30 % |
|
march 1998 - march 1997 |
13.45 % |
| april 1998 - march 1998 |
0.30 % |
|
april 1998 - april 1997 |
13.02 % |
| may 1998 - april 1998 |
0.00 % |
|
may 1998 - may 1997 |
12.83 % |
| june 1998 - may 1998 |
0.44 % |
|
june 1998 - june 1997 |
12.21 % |
| july 1998 - june 1998 |
1.91 % |
|
july 1998 - july 1997 |
10.53 % |
| august 1998 - july 1998 |
-0.29 % |
|
august 1998 - august 1997 |
9.51 % |
| september 1998 - august 1998 |
0.14 % |
|
september 1998 - september 1997 |
8.98 % |
| october 1998 - september 1998 |
-0.14 % |
|
october 1998 - october 1997 |
8.14 % |
| november 1998 - october 1998 |
-0.29 % |
|
november 1998 - november 1997 |
7.49 % |
| december 1998 - november 1998 |
-0.15 % |
|
december 1998 - december 1997 |
6.83 % |