I nomi delle colonne:
[1] - Google
[2] - Search.Mail.ru
[3] - Yandex
Data          [1]      [2]      [3]
6 ott         5.9      5.7      5.1
13 ott        4.6      3.6      3.9
20 ott        3.6      4.4      4.6
27 ott        3.9      4.4      5.3
3 nov         4.7      3.4      4.7
10 nov        3.9      4.9      5.1
17 nov        4.4      3.1        5
24 nov        5.7      4.9      5.3
1 dic         3.7      4.9      5.4
8 dic           5      4.1      4.9
15 dic        4.7      4.7      4.6
22 dic        4.3      4.4      4.4
29 dic        2.9      4.1      4.6
5 gian          3        4      4.3
12 gian       4.3        3      4.1
19 gian       4.3      3.4      3.6
26 gian       4.4      5.3        4
2 feb         3.1      3.6      4.4
9 feb         9.6      3.9     19.4
16 feb        3.4      4.4      4.7
23 feb        6.6      4.4      4.4
2 mar         4.4        4      3.9
9 mar         4.9        4      3.6
16 mar          4      3.1      4.9
23 mar          3      1.1        2
30 mar        3.6      3.4        3
6 apr         4.6      2.9        3
13 apr        5.7      4.9      4.4
20 apr        4.9        5      5.1
27 apr        4.7        5        5
29 apr        4.5      5.5      3.5