earnings decreased?

i really don't understand what's going on. i only earned 2 cents for yesterday despite the fact that i was working really hard in making good responses. in fact the responses i posted yesterday were in 6-7 lines though i posted maybe four three-lined responses. i'm so disappointed about this. i can't think of any reason for the decrease in earnings. i just hope the rest where carried over for today because of the difference in timezones.