| Fecha | Toneladas | Variac. año anterior | Variac. período anterior | ||
|---|---|---|---|---|---|
| % | Valor | % | Valor | ||
| 1981 1 | 226.537,0 | -22,8 | -66.924,0 | -43,9 | -177.017,0 |
| 1980 12 | 403.554,0 | 15,6 | 54.305,0 | ||
| 1980 11 | 349.249,0 | -21,0 | -93.085,0 | ||
| 1980 10 | 442.334,0 | 4,2 | 17.759,0 | ||
| 1980 9 | 424.575,0 | 15,1 | 55.733,0 | ||
| 1980 8 | 368.842,0 | 11,4 | 37.711,0 | ||
| 1980 7 | 331.131,0 | 12,5 | 36.813,0 | ||
| 1980 6 | 294.318,0 | -9,7 | -31.592,0 | ||
| 1980 5 | 325.910,0 | -0,2 | -556,0 | ||
| 1980 4 | 326.466,0 | -5,6 | -19.438,0 | ||
| 1980 3 | 345.904,0 | 2,0 | 6.822,0 | ||
| 1980 2 | 339.082,0 | 15,6 | 45.621,0 | ||
| 1980 1 | 293.461,0 | ||||