36. International trade statistics (ITS) measure quantities and values of goods that, by moving into or out of a country, add to or subtract from a nation’s material stock of goods. ITS are compiled from forms or from electronic transmissions sent by importers and exporters (or their agents) to customs or to the ITS compiler. BOP compilers in most countries rely on ITS to compile the goods item in the BOP and, in some countries, ITS are used in compiling other items in BOP accounts.