Where are raw material prices going, up or down in the next few years to decade?
ask the oil companies, then call the CF manufactures and see what they plan do to 
this is realy an open question. But I figured technology, free markets, and all that stuff would of put a bigger dent in prices than what I’ve seen, besides the price gouging with the shortage.
also if the dollar keeps dropping(if thats the currency you use)