| january 1998 - december 1997 |
7.22 % |
|
january 1998 - january 1997 |
101.62 % |
| february 1998 - january 1998 |
4.42 % |
|
february 1998 - february 1997 |
99.25 % |
| march 1998 - february 1998 |
4.30 % |
|
march 1998 - march 1997 |
97.18 % |
| april 1998 - march 1998 |
4.66 % |
|
april 1998 - april 1997 |
93.57 % |
| may 1998 - april 1998 |
3.50 % |
|
may 1998 - may 1997 |
91.37 % |
| june 1998 - may 1998 |
2.43 % |
|
june 1998 - june 1997 |
90.55 % |
| july 1998 - june 1998 |
3.36 % |
|
july 1998 - july 1997 |
85.35 % |
| august 1998 - july 1998 |
3.95 % |
|
august 1998 - august 1997 |
81.43 % |
| september 1998 - august 1998 |
6.72 % |
|
september 1998 - september 1997 |
80.43 % |
| october 1998 - september 1998 |
6.05 % |
|
october 1998 - october 1997 |
76.64 % |
| november 1998 - october 1998 |
4.29 % |
|
november 1998 - november 1997 |
72.77 % |
| december 1998 - november 1998 |
3.29 % |
|
december 1998 - december 1997 |
69.73 % |