The reason is that we add categories of spending to get to GDP, but we subtract imports.

FORBES: The Role of Foreign Trade on GDP

Users start with categories such as products, finance, news or jobs and then can add filters such as price range, condition or for jobs, location and salary range.

FORBES: New Search Engine Monitors The Internet And Streams Price Changes

And even though majority counsel has just attempted to add additional grounds or to rename others, they too will fit into the few categories for the committee that I will propose in a few minutes.

CNN: Transcript: Schippers, Lowell briefings before Judiciary panel, part 2