BeginPackage["Wikicode`Boron`"]
Production::usage = "Production[date] gives the annual world boron \
production from the specified date."
Begin["`Private`"]
Production[from_Integer] :=
Select[boronData["Production"], DateDifference[{from}, #[[1]]] >= 0 &]
boronData["Production"] =
MapAt[{Round@#} &, #, 1] & /@
Import["http://minerals.usgs.gov/ds/2005/140/ds140-boron.xlsx"][[1,
70 ;; 117, {1, 8}]]
End[]
EndPackage[]
