+ Multilingualism.svgz downloaded from 
  http://www.royalsociety.org.nz/expert-advice/information-papers/yr2013/languages-in-aotearoa-new-zealand/multilingualism-in-new-zealand/

  (Ditto SVGPan-mod.js and tooltip.js)

+ Uncompressed via ...

  zcat Multilingualism.svgz > Multilingualism.svg