Who Knew - Charts and Certifications

Charts and Certifications

Chart (2006-08) Peak
position
Australian ARIA Singles Chart 2
Australian Airplay Chart 1
Austrian Singles Chart 11
Belgium Singles Chart 30
Canadian Hot 100 46
Czech Republic Airplay 1
Dutch Singles Chart 35
Finnish Singles Chart 16
France Singles Chart 24
German Singles Chart 12
German Airplay Chart 1
Hungarian Airplay Chart 1
Irish Singles Chart 6
New Zealand RIANZ Singles Chart 11
Norway Singles Chart 17
Sweden Singles Chart 42
UK Singles Chart 5
U.S. Billboard Hot 100 9
U.S. Billboard Pop Songs 1
U.S. Billboard Adult Pop Songs 1
U.S. Billboard Adult Contemporary 4
Venezuela Pop Rock (Record Report) 3

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Famous quotes containing the word charts:

    There’s one basic rule you should remember about development charts that will save you countless hours of worry.... The fact that a child passes through a particular developmental stage is always more important than the age of that child when he or she does it. In the long run, it really doesn’t matter whether you learn to walk at ten months or fifteen months—as long as you learn how to walk.
    Lawrence Kutner (20th century)