Average number of actual weekly hours of work in main job, by sex, age, professional status, full-time/part-time and economic activity (1998-2008, NACE Rev. 1.1)
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to