International merchandise trade, by commodity, price and volume indexes, quarterly

International merchandise trade price and volume indexes, grouped by North American Product Classification System (NAPCS) section. Users have the option of selecting Imports or Exports, as well as Paasche or Laspeyres price indexes, or Laspeyres volume indexes. Data are unadjusted and seasonally adjusted, on a Customs and Balance of Payments basis, at a quarterly frequency.