EghtesadOnline: Iran's trade (excluding crude oil exports) with Caspian Sea littoral states reached 4.06 million tons worth $2.21 billion in the first seven months of the current fiscal year (March 21-Oct. 22), registering a 2.26% decline in terms of weight, but a 23.25% growth in terms of value year-on-year, according to the Islamic Republic of Iran Customs Administration.