les titres des colonnes:
[1] - 1 jour
[2] - 2 jours
[3] - 3-4 jours
[4] - 5-7 jours
Date          [1]      [2]      [3]      [4]
27 oct       93.2      5.3      1.5    0.074
3 nov        90.2      5.2      2.8      1.8
10 nov         90      4.5      3.6      1.9
17 nov       88.6      3.3      7.5      0.6
24 nov       93.4      2.9      3.2     0.53
1 dec        90.3      5.3      1.6      2.8
8 dec        81.9      7.8        7      3.3
15 dec       98.5      1.3     0.19    0.019
22 dec       97.5     0.83      1.2     0.48
29 dec       83.9      8.2        5      2.9
5 jan        83.8      8.1      4.6      3.6
12 jan       88.2      3.6      1.8      6.5
19 jan         81     10.1      3.2      5.8
26 jan       85.7      1.9      7.1      5.2
2 fev        93.9        5      1.1    0.032
9 fev        91.4      6.2      2.4    0.076
16 fev       94.6      3.6      1.4     0.38
23 fev       95.5      2.3     0.83      1.3
2 mar        80.6      7.2      6.5      5.8
9 mar        88.7      1.5      2.5      7.4
16 mar       91.5      1.6      6.2     0.78
23 mar       81.6      5.7      3.8      8.9
30 mar         81     0.68      3.4       15
6 avr        71.9      4.5        0     23.6
13 avr       78.1      9.5      5.1      7.3
20 avr       84.7      5.8      4.4      5.1
27 avr       78.5      8.5      2.3     10.8
4 mai        80.4      5.4      6.2        8
11 mai       90.4      3.5        0      6.1
18 mai       84.9        7        0      8.1
20 mai       69.2        0     15.4     15.4