One hundred years of Current Employment Statistics data collection

Source: Nicholas Johnson, U.S. Bureau of Labor Statistics, Monthly Labor Review, January 2016

From the abstract:
To help mark the Monthly Labor Review’s centennial, the editors invited several producers and users of BLS data to take a look back at the last 100 years. This article describes the evolution of data collection methods used by the Current Employment Statistics (CES) program. Over the past century, the program has made major strides in developing new survey instruments and processes, all designed to improve data quality and minimize respondent burden.