| january 1957 - december 1956 |
0.30 % |
|
january 1957 - january 1956 |
2.77 % |
| february 1957 - january 1957 |
0.00 % |
|
february 1957 - february 1956 |
2.45 % |
| march 1957 - february 1957 |
-0.60 % |
|
march 1957 - march 1956 |
0.30 % |
| april 1957 - march 1957 |
0.60 % |
|
april 1957 - april 1956 |
0.91 % |
| may 1957 - april 1957 |
0.30 % |
|
may 1957 - may 1956 |
1.52 % |
| june 1957 - may 1957 |
0.60 % |
|
june 1957 - june 1956 |
2.12 % |
| july 1957 - june 1957 |
0.89 % |
|
july 1957 - july 1956 |
2.72 % |
| august 1957 - july 1957 |
-0.29 % |
|
august 1957 - august 1956 |
3.04 % |
| september 1957 - august 1957 |
-0.29 % |
|
september 1957 - september 1956 |
2.42 % |
| october 1957 - september 1957 |
0.30 % |
|
october 1957 - october 1956 |
2.42 % |
| november 1957 - october 1957 |
0.29 % |
|
november 1957 - november 1956 |
2.41 % |
| december 1957 - november 1957 |
0.00 % |
|
december 1957 - december 1956 |
2.10 % |