You asked
I would like any documents related to the volume of British Exports in Goods and Services to the Netherlands and Belgium which is then transported onward to a non-EU end-destination country for the past two financial years (2012-2013, 2013-2014).
This would quantify the Rotterdam-Antwerp Effect which skews your Pink Book's results regarding the volume of our exports that goes to the other EU member states.
We said
Thank you for your email. However following a search of the records held by the Office for National Statistics I can confirm that the information requested is not held. It may be that HM Revenue and Customs can assist you further and they can be contacted at:
HMRC Freedom of Information Team Room 1C/23 100 Parliament Street London SW1A 2BQ
Or by completing an online form.