Retrieved from <a href="https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/647486/Chapter_4_Supplies__overseas_trade_and_marketing.xls" target="_blank">https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/647486/Chapter_4_Supplies__overseas_trade_and_marketing.xls</a> [accessed 05 February 2018]The figures below show the average value of mackerel imports and exports taken from HMRC overseas trade statistics.iUnless specified, figures stated are combined values for 'Fresh or chilled mackerel' (commodity code...