User:Wakebrdkid/Asbestos

Article

Tests

BeginPackage["Wikicode`Asbestos`"]

Production::usage = "Production[date] gives the annual world asbestos \
production from the specified date."

Begin["`Private`"]

Production[from_Integer] :=
 Select[asbestosData["Production"],
  DateDifference[{from}, #[[1]]] >= 0 &]

asbestosData["Production"] =
  MapAt[{Round@#} &, #, 1] & /@
   Import["http://minerals.usgs.gov/ds/2005/140/ds140-asbes.xlsx"][[1,
      6 ;; -4, {1, 8}]];

End[]
EndPackage[]