So Ken, maybe let me try to take a stab at your question. So first of all, on raw material and steel, specifically, I mean no transparency, compared to what we thought last year, November, we would be, we were somewhat surprised by the magnitude of raw material increase, but then frankly, as you know, from last earnings call, we saw that picture pretty much in February. And it's since stabilized, which again was a little bit earlier, probably the most thought. And you also write the steel is just a big part of our cost base. And that's where we saw a significant portion of raw material, not everything, because we're also in resins and logistic costs a significant portion. I have to answer the question, but how did you know? I mean, it's basically can affect your data and experience, okay. It's not that we started buying steel this year. We've done that for about 109 or 110 years. So, we know steel, basically experienced, but we also have a lot of data. We have, we know the cost model by steel mill everywhere. We know what our contracts are. We know how they're running, But having said that, the steel market is always, there is a spot element to it, there is a structural element. So you still got to take several facts into account, and it will despite our abilities will still always include some surprises. But right now, I think we have a steel market right now, is this pretty much where we unfortunately, "forecasted" it will be.