les titres des colonnes:
[1] - Russie
[2] - USA
[3] - Allemagne
[4] - Kazakhstan
[5] - BiƩlorussie
Date          [1]      [2]      [3]      [4]      [5]
20 oct       80.4      4.8      0.8      0.4        2
27 oct       72.8      7.8      1.6      2.7      1.9
3 nov        78.3      3.7      2.9        0      1.6
10 nov         74      6.5      1.9     0.93      1.4
17 nov       72.7      4.5     0.57     0.57      1.7
24 nov       75.3      8.9     0.68        0      2.1
1 dec        78.4      4.4     0.98        0      1.5
8 dec          72      8.9      2.4      0.6      1.2
15 dec       67.3      9.9      1.2        0      1.2
22 dec       65.5      7.3      2.3      1.7      2.3
29 dec       70.1      6.8        0     0.68      4.1
5 jan          57      7.5      5.6      1.9     0.93
12 jan       72.8        6      2.6        2        4
19 jan       31.5      6.8      1.2        0      1.7
26 jan       70.9      7.5      2.5        0      3.5
2 fev        69.8      5.5      2.2     0.55      1.6
9 fev        65.7      9.3      2.8      1.9      2.3
16 fev       70.7      8.1        0     0.51      2.5
23 fev       73.5      6.6     0.55      1.1      3.3
2 mar        67.2     10.8        2     0.49        2
9 mar          66     10.6      2.7        0      4.8
16 mar         50      8.8     0.73     0.36     0.36
23 mar       71.4      3.8     0.55     0.55      1.6
30 mar       70.4      9.1      1.6      1.1      2.7
6 avr        45.4     40.1      1.4      1.1     0.35
13 avr       48.2     41.4      0.6      0.6      1.5
20 avr       45.8     37.9      2.2        0      2.2
27 avr       45.3     43.2      1.4        0      1.4
4 mai        57.6     28.2     0.59        0      1.8
11 mai       69.5     16.5        0     0.61      1.2
18 mai       72.3       15      2.9        0        0