| january 1968 - december 1967 |
0.10 % |
|
january 1968 - january 1967 |
2.82 % |
| february 1968 - january 1968 |
0.52 % |
|
february 1968 - february 1967 |
3.40 % |
| march 1968 - february 1968 |
0.10 % |
|
march 1968 - march 1967 |
3.38 % |
| april 1968 - march 1968 |
0.21 % |
|
april 1968 - april 1967 |
3.25 % |
| may 1968 - april 1968 |
-0.09 % |
|
may 1968 - may 1967 |
2.87 % |
| june 1968 - may 1968 |
0.09 % |
|
june 1968 - june 1967 |
3.18 % |
| july 1968 - june 1968 |
0.18 % |
|
july 1968 - july 1967 |
2.27 % |
| august 1968 - july 1968 |
-0.01 % |
|
august 1968 - august 1967 |
2.23 % |
| september 1968 - august 1968 |
0.17 % |
|
september 1968 - september 1967 |
1.73 % |
| october 1968 - september 1968 |
0.46 % |
|
october 1968 - october 1967 |
2.11 % |
| november 1968 - october 1968 |
0.15 % |
|
november 1968 - november 1967 |
2.05 % |
| december 1968 - november 1968 |
0.38 % |
|
december 1968 - december 1967 |
2.30 % |