january 1981 - december 1980 |
9.98 % |
|
january 1981 - january 1980 |
49.88 % |
february 1981 - january 1981 |
1.91 % |
|
february 1981 - february 1980 |
46.12 % |
march 1981 - february 1981 |
2.66 % |
|
march 1981 - march 1980 |
45.68 % |
april 1981 - march 1981 |
1.52 % |
|
april 1981 - april 1980 |
44.69 % |
may 1981 - april 1981 |
3.45 % |
|
may 1981 - may 1980 |
47.44 % |
june 1981 - may 1981 |
1.16 % |
|
june 1981 - june 1980 |
43.92 % |
july 1981 - june 1981 |
0.14 % |
|
july 1981 - july 1980 |
41.21 % |
august 1981 - july 1981 |
0.00 % |
|
august 1981 - august 1980 |
42.36 % |
september 1981 - august 1981 |
1.57 % |
|
september 1981 - september 1980 |
40.32 % |
october 1981 - september 1981 |
4.08 % |
|
october 1981 - october 1980 |
39.96 % |
november 1981 - october 1981 |
1.49 % |
|
november 1981 - november 1980 |
38.12 % |
december 1981 - november 1981 |
3.33 % |
|
december 1981 - december 1980 |
35.73 % |