| january 1980 - december 1979 |
1.94 % |
|
january 1980 - january 1979 |
12.92 % |
| february 1980 - january 1980 |
1.06 % |
|
february 1980 - february 1979 |
13.37 % |
| march 1980 - february 1980 |
1.16 % |
|
march 1980 - march 1979 |
13.65 % |
| april 1980 - march 1980 |
1.25 % |
|
april 1980 - april 1979 |
13.94 % |
| may 1980 - april 1980 |
0.82 % |
|
may 1980 - may 1979 |
13.66 % |
| june 1980 - may 1980 |
0.71 % |
|
june 1980 - june 1979 |
13.53 % |
| july 1980 - june 1980 |
1.41 % |
|
july 1980 - july 1979 |
13.64 % |
| august 1980 - july 1980 |
1.00 % |
|
august 1980 - august 1979 |
13.59 % |
| september 1980 - august 1980 |
0.89 % |
|
september 1980 - september 1979 |
13.64 % |
| october 1980 - september 1980 |
1.08 % |
|
october 1980 - october 1979 |
13.51 % |
| november 1980 - october 1980 |
0.68 % |
|
november 1980 - november 1979 |
13.53 % |
| december 1980 - november 1980 |
0.96 % |
|
december 1980 - december 1979 |
13.73 % |