| Fecha | M.M. PTAS | Variac. año anterior | Variac. período anterior |
|---|
| % | Valor | % | Valor |
|---|
| 1998 12 | 24.050,107 | 15,5 | 3.227,150 | 8,5 | 1.884,850 |
| 1998 11 | 22.165,254 | 13,2 | 2.584,640 | 0,5 | 104,530 |
| 1998 10 | 22.060,727 | 10,7 | 2.131,800 | 0,2 | 46,380 |
| 1998 9 | 22.014,345 | 10,9 | 2.157,760 | 1,0 | 226,050 |
| 1998 8 | 21.788,299 | 11,0 | 2.164,510 | -2,5 | -554,740 |
| 1998 7 | 22.343,043 | 10,8 | 2.176,200 | 4,5 | 968,330 |
| 1998 6 | 21.374,715 | 12,2 | 2.316,580 | -0,1 | -21,300 |
| 1998 5 | 21.396,017 | 13,5 | 2.550,700 | 0,8 | 161,050 |
| 1998 4 | 21.234,965 | 12,2 | 2.309,340 | 1,2 | 259,410 |
| 1998 3 | 20.975,555 | 11,4 | 2.148,610 | 2,2 | 449,740 |
| 1998 2 | 20.525,813 | 11,5 | 2.119,460 | -0,2 | -50,230 |
| 1998 1 | 20.576,045 | 10,9 | 2.020,240 | -1,2 | -246,910 |
| 1997 12 | 20.822,953 | 12,5 | 2.305,260 | 6,3 | 1.242,340 |
| 1997 11 | 19.580,613 | 12,9 | 2.238,540 | -1,8 | -348,310 |
|