The Chicago Tribune’s long-standing commitment to help advertisers market their products and services has kept us at the forefront as providers of research and marketing information. The Chicago Tribune offers this current National Labor Force Study as an information source to help our clients gain the competitive edge they need to compete in the marketplace. The National Labor Force Study measures data according to a specific occupation. This report provides the opportunity to evaluate and rank nearly 200 occupational titles by the top 25 markets, thereby demonstrating the experienced talent pool the Chicagoland area offers to professional recruiters. The data within this Study are from the larger United States Department of Labor’s Occupational Employment Statistics (OES) Survey, November 2002. For more information about the OES Survey, click here .