The U.S. Bureau of Labor Statistics (BLS) estimated in May 2015 that statistical group 37-3011 "Landscaping and Groundskeeping Workers" numbered 895,600 with a median annual wage of $25,030.[4] The BLS describes the functions of this group as "Workers typically perform a variety of tasks, which may include any combination of the following: sod laying, mowing, trimming, planting, watering, fertilizing, digging, raking, sprinkler installation, and installation of mortarless segmental concrete masonry wall units".