This document provides an overview of the objective yield and objective measurement programs conducted by the National Agricultural Statistics Service (NASS) since the early 1950s. The document presents historical data on state participation and sample sizes for all crops included in the national program and relevant information on state specific programs. The national program, directed from the NASS headquarters in Washington D.C., and funded under the Federal budget, includes (or has included) the following crops: corn, cotton, potatoes, rice, sorghum, soybeans, sunflower, tobacco, and wheat. The state specific programs are only conducted in specific states and are funded by local state governments or specific industries.