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| MCI | CCI | CPI | PPI | |
| January | 340.9 | 379.0 | 330.5 | 298.3 |
| February | 341.4 | 379.7 | 330.8 | 298.7 |
| March | 341.4 | 380.0 | 331.1 | 298.1 |
| April | 342.7 | 379.7 | 333.1 | 300.9 |
| May | 343.9 | 380.4 | 334.4 | 302.7 |
| June | 344.6 | 380.8 | 335.9 | 302.8 |
| July | 346.1 | 381.4 | 338.8 | 305.1 |
| August | 347.5 | 382.8 | 338.7 | 307.3 |
| September | 348.9 | 384.4 | 340.1 | 308.5 |
| October | 350.6 | 386.8 | 340.8 | 310.2 |
| November | 351.8 | 387.9 | 342.7 | 310.5 |
| December | 352.5 | 388.6 | 344.4 | 310.4 |
* The cost index base years are 1968 and 1982. In 1988, AC&C switched to a base year of 1982.
