Of about 2,500 files, 60 were omitted from the index.

A total of 155 shares from the old index will be carried over into the new one.

More than 800 academic papers have used data from the index.

Here are some questions from the index and my answers.

Individual books can be removed from the index, just as Web sites can.

Below is a crudely sampled list from the entire index.

Prices for business related services and complex litigation cases are excluded from the index.

Data from the index, from 6/1981 to the present, can be found here.

Mining stocks as a whole wiped 54 points from the index.

Wednesday happened to be the one day of the year that stocks are added to or deleted from the index.