Graphs from Facebook link_stat table remain zero

I am using the link via android sdk. I have a friends comment and how is this share ... when I want to get some calculations for this link, I do this: https://developers.facebook.com/docs/reference/fql/link_stat/

however, all the calculations remain 0. I thought I was giving him an hour or so, it might take some time in facebook DB to update my database. but even after 3 hours, all samples remain 0.

my fql instruction is as follows:

SELECT url, normalized_url, share_count, like_count, comment_count, total_count, commentsbox_count, comments_fbid, click_count FROM link_stat WHERE url = "http://someurl"

Am I doing something wrong, or do I just need to wait longer for facebook to update the link_stat table?