A Black Hole in the Charts

[rock collector]

Why is there a large gap in the World Modern Rock Singles of 2005? What were the top 30 in this genre from the 13th of August to 19th of November?

When will these be filled in?

[rock collector]

Aww, come on, surely there's gotta be an answer for this one! I mean, even if the answer is "the charts won't be updated due to lack of information", then this would at least be an explaination, but just leaving the issue hanging ain't fair!