january 1981 - december 1980 |
3.56 % |
|
january 1981 - january 1980 |
64.21 % |
february 1981 - january 1981 |
1.43 % |
|
february 1981 - february 1980 |
47.02 % |
march 1981 - february 1981 |
0.68 % |
|
march 1981 - march 1980 |
42.64 % |
april 1981 - march 1981 |
0.56 % |
|
april 1981 - april 1980 |
38.16 % |
may 1981 - april 1981 |
2.76 % |
|
may 1981 - may 1980 |
37.81 % |
june 1981 - may 1981 |
3.94 % |
|
june 1981 - june 1980 |
37.72 % |
july 1981 - june 1981 |
1.37 % |
|
july 1981 - july 1980 |
36.70 % |
august 1981 - july 1981 |
0.83 % |
|
august 1981 - august 1980 |
33.06 % |
september 1981 - august 1981 |
4.77 % |
|
september 1981 - september 1980 |
34.28 % |
october 1981 - september 1981 |
2.36 % |
|
october 1981 - october 1980 |
31.38 % |
november 1981 - october 1981 |
2.12 % |
|
november 1981 - november 1980 |
32.22 % |
december 1981 - november 1981 |
1.14 % |
|
december 1981 - december 1980 |
28.60 % |