january 1981 - december 1980 |
1.63 % |
|
january 1981 - january 1980 |
30.59 % |
february 1981 - january 1981 |
0.31 % |
|
february 1981 - february 1980 |
28.65 % |
march 1981 - february 1981 |
0.80 % |
|
march 1981 - march 1980 |
25.97 % |
april 1981 - march 1981 |
1.22 % |
|
april 1981 - april 1980 |
24.36 % |
may 1981 - april 1981 |
1.32 % |
|
may 1981 - may 1980 |
23.15 % |
june 1981 - may 1981 |
0.09 % |
|
june 1981 - june 1980 |
20.96 % |
july 1981 - june 1981 |
0.62 % |
|
july 1981 - july 1980 |
19.29 % |
august 1981 - july 1981 |
1.22 % |
|
august 1981 - august 1980 |
18.15 % |
september 1981 - august 1981 |
0.92 % |
|
september 1981 - september 1980 |
16.75 % |
october 1981 - september 1981 |
0.32 % |
|
october 1981 - october 1980 |
13.80 % |
november 1981 - october 1981 |
0.18 % |
|
november 1981 - november 1980 |
11.08 % |
december 1981 - november 1981 |
0.52 % |
|
december 1981 - december 1980 |
9.54 % |