It is the shipping of goods/materials index. Goods are not in demand right now, again, as in 2008. Folks are making due with what they already have.
Here is the store bought version LOL
The Baltic Dry Index (BDI) is a number issued daily by the London-based Baltic Exchange. Not restricted to Baltic Sea countries, the index provides "an assessment of the price of moving the major raw materials by sea. Taking in 23 shipping routes measured on a timecharter basis, the index covers Handysize, Supramax, Panamax, and Capesize dry bulk carriers carrying a range of commodities including coal, iron ore and grain."[1]
http://en.wikipedia.org/wiki/Baltic_Dry_Index

Realist - Everybody in America is soft, and hates conflict. The cure for this, both in politics and social life, is the same -- hardihood. Give them raw truth.