from their website:
The Statistical Abstract of the United States, published since 1878, is the authoritative and comprehensive summary of statistics on the social, political, and economic organization of the United States. Use the Abstract as a convenient volume for statistical reference, and as a guide to sources of more information both in print and on the Web. Sources of data include the Census Bureau, Bureau of Labor Statistics, Bureau of Economic Analysis, and many other Federal agencies and private organizations.
from a Washington Post article:
If you want to know something about America, there are few better places to start than the “Statistical Abstract of the United States.” Published annually by the Census Bureau, the Stat Abstract assembles about 1,400 tables describing our national condition. What share of children are immunized against measles, mumps and rubella? Answer: 92 percent. What state has the highest disposable per capita income? Answer: Connecticut, 33 percent above the national average. How big is the nation’s network of oil pipelines? Answer: 147,000 miles, about triple the length of the Interstate Highway System (46,751 miles).
With some interruptions, the government has published it since 1878. No more. The Stat Abstract is headed for the chopping block. The 2012 edition, scheduled for publication later this year, will be the last, unless someone saves it.
Or go directly to the current edition and see for yourself what a great endangered resource this is.