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photo by Gerry Snaps / cc-by-nc 2.0
Il est là !
23%28% 32%
43%50%
55% 57%
76% 78%84%
88% 90% 93% 95%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Taux d'utilisation
photo by Samyra Serrin/ cc-by-nc-nd 2.0
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