los nombres de las columnas:
[1] - 1 día
[2] - 2 día
[3] - 3-4 día
[4] - 5-7 días
Fecha         [1]      [2]      [3]      [4]
dic 22       70.9     11.1      8.3      9.7
en 23        71.8     10.8      7.9      9.4
feb 23       73.6     10.2      7.5      8.7
mar 23       75.9      9.5      6.9      7.7
abr 23       72.8     10.4      7.8        9
mayo 23      73.3     10.4      7.9      8.4
jun 23         74     10.3      7.5      8.2
jul 23       75.5      9.8        7      7.7
ag 23        75.7      9.7      6.9      7.7
sept 23      74.7       10      7.2      8.1
oct 23       74.8      9.9      7.2      8.1
nov 23       74.2      9.9      7.4      8.5
dic 23       73.4     10.2      7.6      8.8
en 24        74.1      9.8      7.2      8.9
feb 24       73.1       10      7.7      9.2
mar 24       73.5      9.8      7.4      9.2
abr 24       73.8      9.8      7.4        9
mayo 24      74.6      9.9      7.2      8.3
jun 24         74     10.2      7.3      8.4
jul 24       74.7      9.8      7.1      8.4
ag 24        75.1      9.8        7      8.2
sept 24      75.8      9.5      6.9      7.8
oct 24       74.2       10      7.3      8.5
nov 24       74.2      9.8      7.2      8.8
dic 24       73.7       10      7.3        9
en 25        75.1      9.7      6.7      8.5
feb 25       74.4      9.7      7.2      8.7
mar 25       74.3      9.6      7.2      8.9
abr 25       74.1      9.8      7.4      8.8
mayo 25      74.6      9.9      7.4        8
jun 25       75.2      9.7      7.1        8