Besides of that - it would be helpful when the statistic site displays the number of shares, that my worker produced, as well and not just the total number and my reward.
That way everybody is able to see if any shares were coming in..
If it says none, then you really had 0 shares that round. If you recieved even a small payment then you had at least 1 share.
It's very common if the round lasts only some seconds, no matter how much hashing power you have. It's a luck of the draw.