BeginPackage["Wikicode`Kyanite`"]
Production::usage="Production[date] gives the annual world kyanite production from the specified date."
Begin["`Private`"]
Production[from_Integer]:=Select[kyaniteData["Production"],DateDifference[{from},#[[1]]] >= 0&]
kyaniteData["Production"]=MapAt[{Round@#}&,#,1]&/@Import["http://minerals.usgs.gov/ds/2005/140/ds140-kyani.xlsx"][[1,6;;89,{1,8}]]
End[]
EndPackage[]
