les titres des colonnes:
[1] - Russie
[2] - Autres
[3] - Kazakhstan
[4] - Lituanie
[5] - USA
Date          [1]      [2]      [3]      [4]      [5]
3 nov        61.5     18.8      4.3        0      1.7
10 nov         73      4.1      4.1        0      1.4
17 nov       67.9      5.7      3.8        0      9.4
24 nov       64.2        6      1.5        0      4.5
1 dec        74.1      5.6      1.9        0      1.9
8 dec        67.3      3.8        0        0      1.9
15 dec       61.3      6.7      1.5     0.65      2.3
22 dec       76.6      7.8      3.1        0        0
29 dec       59.6      4.3      2.1        0      2.1
5 jan          50      3.1      3.1        0        0
12 jan       71.4        0      4.8        0      2.4
19 jan       51.5        3        3        0        3
26 jan         64        8        0        0        8
2 fev        41.7      9.4      1.9     0.45      8.2
9 fev        50.8      7.3      2.7     0.18      3.3
16 fev       43.4     19.7     0.58      1.2      8.7
23 fev       73.7        0        0        0     15.8
2 mar        79.2      4.2      8.3        0        0
9 mar        58.1      4.7        0        0     23.3
16 mar         80        0        0        0        5
23 mar       73.2        0      2.4        0     12.2
30 mar       74.2      6.5      6.5        0      3.2
6 avr        66.7      3.7      3.7        0        0
13 avr       67.6      2.9        0        0      2.9
20 avr       65.4        0      3.8        0        0
27 avr       73.3      3.3        0        0      3.3
4 mai        77.3        0        0        0      4.5
11 mai         80        5        0        0        0
18 mai        100        0        0        0        0
25 mai       78.9      5.3        0        0        0
30 mai       70.6      5.9      5.9        0        0