So if we use this line as approximation, after one year, this point would have 1,444 tons. But we're not trying to approximate a year out, we're trying to approximate a fourth of a year out. So we're trying to approximate, so this would be half a year out, this is one fourth of a year out. We're trying to approximate, we're trying to approximate that point right over there. So it's going to be 1,400, this point right over here. And we could write down the equation of this line if we like. We could say this line, this line, so we'll call this the W approximation, because this isn't exactly our W function.