National Agricultural Statistics Service conducts agricultural estimates that involve collecting, analyzing, and publishing agricultural production and marketing data, including: number of farms and acreage in farms; crop acreage, yields, production, stocks, value, and utilization; inventories and production of livestock, poultry, eggs, and dairy products; prices received by farmers for products, prices paid for commodities and services for living and production, and related indexes; farm employment and wage rates; cold storage supplies; agricultural chemical use; aquaculture; and other relevant aspects of the agricultural economy. Estimates for about 120 crops and 45 livestock items are published in about 400 Federal and 9,000 State-Federal reports each year. Beginning in 1997, NASS is responsible for the Census of Agriculture, previously conducted by the Bureau of the Census, Commerce Department. The Census of Agriculture is taken every 5 years and provides comprehensive data down to the county level on all aspects of the agricultural economy for the U.S., as well as selected data for American Samoa, Puerto Rico, Guam, Virgin Islands, and the Northern Mariana Islands. All information is made available to the news media and the public at scheduled release times and is available for free on the Internet. Statistical research and service is directed toward improving crop and livestock estimating techniques. Considerable emphasis is placed on improving survey sample designs as well as testing new forecasting and estimating techniques, such as using satellite data.